Re: [ovirt-users] Performance issue for GlusterFS as the block storage for VMs

15 Jan 2015

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] <b>On Behalf Of </b>Yue, Cong<br><b>Sent:</b> Thursday, January 15, =
2015 10:57 AM<br><b>To:</b> <a =
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I see. 

So have you done any tuning for IO performance or are the configs straight
out of the box. You also said you mounted the volume to a vm. Did you mount
it as gluster or use the built in NFS??

Donny

From: Yue, Cong [mailto:Cong_Yue@alliedtelesis.com] 
Sent: Thursday, January 15, 2015 11:40 AM
To: Donny Davis; users@ovirt.org
Subject: RE: [ovirt-users] Performance issue for GlusterFS as the block
storage for VMs

I am using iometer (http://www.iometer.org/) to test the IOPS from one of
the vm.

As for IOPS is more trying to test the performance of block, rather than
real file transfer.

In my environment, I am using 10Gbe to make two gluster nodes be replicated.
And I mount it to vm as a volume. I tested the performance both for SAS and
SSD.

This is my current result with iometer. 

Test ID

Application

Block Size (Bytes)

Read/Write %

Random/Sequential %

I/O Performance Metrics

iscsi-hdd

iscsi-ssd

Guster,HDD

Gluster,SSD

1

Web File Server

4K

95%/5%

75%/25%

IOPS

195.28

2400.63

208.50

646.75

2

Web File Server

8K

95%/5%

75%/25%

IOPS

193.97

2225.73

179.89

649.93

3

Web File Server

64K

95%/5%

75%/25%

IOPS

180.50

1055.05

158.28

402.15

4

Database Online Transaction Processing

8K

70%/30%

100%/0%

IOPS

163.60

2415.90

132.13

308.46

5

Exchange Email

4K

67%/33%

100%/0%

IOPS

167.03

2685.33

145.92

294.56

6

OS Drive

8K

70%/30%

100%/0%

IOPS

163.60

2407.02

146.11

310.82

7

Decision Support System

1M

100%/0%

100%/0%

IOPS

74.24

207.42

81.14

112.20

8

File Server

8K

90%/10%

75%/25%

IOPS

191.20

2102.32

359.54

526.86

9

Video on Demand

512K

100%/0%

100%/0%

IOPS

100.32

327.19

136.66

162.48

10

Traffic Simulation

8K

50%/50%

75%/25%

IOPS

238.28

1923.91

301.05

297.70

11

Web Server Logging

8K

0%/100%

0%/100%

IOPS

3488.47

3644.33

290.33

282.04

12

SQL Server Logging

64K

0%/100%

0%/100%

IOPS

1423.29

1375.33

182.67

168.64

13

OS Paging

64K

90%/10%

0%/100%

IOPS

1215.74

1211.01

381.17

355.99

14

Media Streaming

64K

98%/2%

0%/100%

IOPS

1350.96

1365.22

457.28

455.49

The issue for GlusterFS I found is 

-          It can not retain the nature of SSD and SAS, such as SAS is
strong  for sequential access. SSD is strong for random access.

-          In some case, especially for SSD, the performance is pretty bad.

Thanks,

Cong

From: Donny Davis [mailto:donny@cloudspin.me] 
Sent: Thursday, January 15, 2015 10:27 AM
To: Yue, Cong; users@ovirt.org
Subject: RE: [ovirt-users] Performance issue for GlusterFS as the block
storage for VMs

Do you have any metrics to give an idea of the difference. I am using NFS
right now, and I am migrating to Gluster. I have the gluster system up, and
I see that it seems to provision disks faster than my NFS. I haven't used
any real measurement tools to get actual metrics, this is all perceived. 

Do you have an operational gluster?

Do what are you using right now?

Donny D

cloudspin.me

From: users-bounces@ovirt.org [mailto:users-bounces@ovirt.org] On Behalf Of
Yue, Cong
Sent: Thursday, January 15, 2015 10:57 AM
To: users@ovirt.org
Subject: [ovirt-users] Performance issue for GlusterFS as the block storage
for VMs

Hi 

I have one question about whether GlusterFS is the suitable solution to be
used as the block storage for VMs.

The failure tolerant and scalability is good for GlusterFS, but in my test,
it seems the iops is pretty bad. In some blog, it said, it is even with
worse performance than normal NFS.

Should I use iscsi+drbd for the block storage for VMs.

Can somebody give some advice for this? 

Thanks,
Cong

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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>I see. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>So have you done any =
tuning for IO performance or are the configs straight out of the box. =
You also said you mounted the volume to a vm. Did you mount it as =
gluster or use the built in NFS??<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Donny<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Yue, Cong [mailto:Cong_Yue@alliedtelesis.com] <br><b>Sent:</b> Thursday, =
January 15, 2015 11:40 AM<br><b>To:</b> Donny Davis; =
users@ovirt.org<br><b>Subject:</b> RE: [ovirt-users] Performance issue =
for GlusterFS as the block storage for =
VMs<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>I am using iometer (<a =
href=3D"http://www.iometer.org/">http://www.iometer.org/</a>) to test =
the IOPS from one of the vm.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>As for IOPS is more =
trying to test the performance of block, rather than real file =
transfer.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>In my environment, I am =
using 10Gbe to make two gluster nodes be replicated. And I mount it to =
vm as a volume. I tested the performance both for SAS and =
SSD.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>This is my current result with iometer. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><table =
class=3DMsoNormalTable border=3D0 cellspacing=3D0 cellpadding=3D0 =
width=3D1111 =
style=3D'width:833.55pt;margin-left:-1.15pt;border-collapse:collapse'><tr=
 style=3D'height:29.25pt'><td width=3D49 nowrap =
style=3D'width:37.0pt;border:solid windowtext =
1.0pt;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>Test ID<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border-top:solid windowtext =
1.0pt;border-left:none;border-bottom:solid windowtext =
1.0pt;border-right:none;background:#00B0F0;padding:0in 5.4pt 0in =
5.4pt;height:29.25pt'><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Application<o=
:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Block Size =
(Bytes)<o:p></o:p></span></p></td><td width=3D114 =
style=3D'width:85.5pt;border:solid windowtext =
1.0pt;border-left:none;background:#00B0F0;padding:0in 5.4pt 0in =
5.4pt;height:29.25pt'><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Read/Write =
%<o:p></o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border:solid windowtext =
1.0pt;border-left:none;background:#00B0F0;padding:0in 5.4pt 0in =
5.4pt;height:29.25pt'><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Random/Sequen=
tial %<o:p></o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border:solid windowtext =
1.0pt;border-left:none;background:#00B0F0;padding:0in 5.4pt 0in =
5.4pt;height:29.25pt'><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>I/O =
Performance Metrics<o:p></o:p></span></p></td><td width=3D84 =
style=3D'width:63.0pt;border:solid windowtext =
1.0pt;border-left:none;background:#00B0F0;padding:0in 5.4pt 0in =
5.4pt;height:29.25pt'><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>iscsi-hdd<o:p=
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>iscsi-ssd<o:p=
style=3D'width:76.5pt;border-top:solid windowtext =
1.0pt;border-left:none;border-bottom:none;border-right:solid windowtext =
1.0pt;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Guster,HDD<o:=
p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:solid windowtext =
1.0pt;border-left:none;border-bottom:none;border-right:solid windowtext =
1.0pt;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Gluster,SSD<o=
:p></o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td =
width=3D49 nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid =
windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'color:black'>1<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Web File =
Server<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>4K<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>95%/5%<o:p></=
o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>75%/25%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>195.28<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>2400.63<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border:solid windowtext =
1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>208.50<o:p></=
o:p></span></p></td><td width=3D102 style=3D'width:76.8pt;border:solid =
windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>646.75<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>2<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Web File =
Server<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>8K<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>95%/5%<o:p></=
o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>75%/25%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>193.97<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>2225.73<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>179.89<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>649.93<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>3<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Web File =
Server<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>64K<o:p></o:p=
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>95%/5%<o:p></=
o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>75%/25%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>180.50<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>1055.05<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>158.28<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>402.15<o:p></=
o:p></span></p></td></tr><tr style=3D'height:29.25pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>4<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Database =
Online Transaction Processing<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:29.25pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>8K<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>70%/30%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>100%/0%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:29.25pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:29.25pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>163.60<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:29.25pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>2415.90<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:29.25pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>132.13<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:29.25pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>308.46<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>5<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Exchange =
Email<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>4K<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>67%/33%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>100%/0%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>167.03<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>2685.33<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>145.92<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>294.56<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>6<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>OS =
Drive<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>8K<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>70%/30%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>100%/0%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>163.60<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>2407.02<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>146.11<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>310.82<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>7<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Decision =
Support System<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>1M<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>100%/0%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>100%/0%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>74.24<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>207.42<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>81.14<o:p></o=
:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>112.20<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>8<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>File =
Server<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>8K<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>90%/10%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>75%/25%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>191.20<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>2102.32<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>359.54<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>526.86<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>9<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Video on =
Demand<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>512K<o:p></o:=
p></span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>100%/0%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>100%/0%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>100.32<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>327.19<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>136.66<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>162.48<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>10<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Traffic =
Simulation<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>8K<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>50%/50%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>75%/25%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>IOPS<o:p></o:=
p></span></p></td><td width=3D84 nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>238.28<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>1923.91<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>301.05<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>297.70<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>11<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Web Server =
Logging<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>8K<o:p></o:p>=
</span></p></td><td width=3D114 =
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>0%/100%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>0%/100%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>IOPS<o:p></o:p></span></p></td><td width=3D84 =
nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>3488.47<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>3644.33<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>290.33<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>282.04<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>12<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>SQL Server =
Logging<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>64K<o:p></o:p=
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>0%/100%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>0%/100%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>IOPS<o:p></o:p></span></p></td><td width=3D84 =
nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>1423.29<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>1375.33<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>182.67<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>168.64<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>13<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>OS =
Paging<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>64K<o:p></o:p=
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>90%/10%<o:p><=
/o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>0%/100%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>IOPS<o:p></o:p></span></p></td><td width=3D84 =
nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>1215.74<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>1211.01<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>381.17<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>355.99<o:p></=
o:p></span></p></td></tr><tr style=3D'height:15.75pt'><td width=3D49 =
nowrap valign=3Dbottom style=3D'width:37.0pt;border:solid windowtext =
1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>14<o:p></o:p></span></p></td><td width=3D198 =
style=3D'width:148.25pt;border:none;border-bottom:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>Media =
Streaming<o:p></o:p></span></p></td><td width=3D90 =
style=3D'width:67.5pt;border:solid windowtext =
1.0pt;border-top:none;background:#D9D9D9;padding:0in 5.4pt 0in =
5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>64K<o:p></o:p=
style=3D'width:85.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>98%/2%<o:p></=
o:p></span></p></td><td width=3D150 =
style=3D'width:112.8pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>0%/100%<o:p><=
/o:p></span></p></td><td width=3D144 =
style=3D'width:107.7pt;border-top:none;border-left:none;border-bottom:sol=
id windowtext 1.0pt;border-right:solid windowtext =
1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt'><p =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span =
style=3D'color:black'>IOPS<o:p></o:p></span></p></td><td width=3D84 =
nowrap valign=3Dbottom =
style=3D'width:63.0pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>1350.96<o:p></o:p></span></p></td><td width=3D78 =
nowrap valign=3Dbottom =
style=3D'width:58.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dright =
style=3D'text-align:right'><span =
style=3D'color:black'>1365.22<o:p></o:p></span></p></td><td width=3D102 =
style=3D'width:76.5pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>457.28<o:p></=
o:p></span></p></td><td width=3D102 =
style=3D'width:76.8pt;border-top:none;border-left:none;border-bottom:soli=
d windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt =
0in 5.4pt;height:15.75pt'><p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:black'>455.49<o:p></=
o:p></span></p></td></tr></table><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>The issue for GlusterFS =
I found is <o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l0 level1 lfo2'><![if =
!supportLists]><span style=3D'color:#1F497D'><span =
style=3D'mso-list:Ignore'>-<span style=3D'font:7.0pt "Times New =
Roman"'>          =
</span></span></span><![endif]><span style=3D'color:#1F497D'>It can not =
retain the nature of SSD and SAS, such as SAS is strong  for =
sequential access. SSD is strong for random =
access.<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l0 level1 lfo2'><![if =
!supportLists]><span style=3D'color:#1F497D'><span =
style=3D'mso-list:Ignore'>-<span style=3D'font:7.0pt "Times New =
Roman"'>          =
</span></span></span><![endif]><span style=3D'color:#1F497D'>In some =
case, especially for SSD, the performance is pretty =
bad.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Cong<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Donny Davis [<a =
href=3D"mailto:donny@cloudspin.me">mailto:donny@cloudspin.me</a>] =
<br><b>Sent:</b> Thursday, January 15, 2015 10:27 AM<br><b>To:</b> Yue, =
Cong; <a =
href=3D"mailto:users@ovirt.org">users@ovirt.org</a><br><b>Subject:</b> =
RE: [ovirt-users] Performance issue for GlusterFS as the block storage =
for VMs<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Do you have any metrics to give an idea of the =
difference. I am using NFS right now, and I am migrating to Gluster. I =
have the gluster system up, and I see that it seems to provision disks =
faster than my NFS. I haven’t used any real measurement tools to =
get actual metrics, this is all perceived. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Do you have an =
operational gluster?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Do what are you using right =
now?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Donny =
D<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>cloudspin.me<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
<a href=3D"mailto:users-bounces@ovirt.org">users-bounces@ovirt.org</a> =
[<a =
href=3D"mailto:users-bounces@ovirt.org">mailto:users-bounces@ovirt.org</a=
href=3D"mailto:users@ovirt.org">users@ovirt.org</a><br><b>Subject:</b> =
[ovirt-users] Performance issue for GlusterFS as the block storage for =
VMs<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Hi =
<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal>I have one question about whether GlusterFS is the =
suitable solution to be used as the block storage for =
VMs.<o:p></o:p></p><p class=3DMsoNormal>The failure tolerant and =
scalability is good for GlusterFS, but in my test, it seems the iops is =
pretty bad. In some blog, it said, it is even with worse performance =
than normal NFS.<o:p></o:p></p><p class=3DMsoNormal>Should I use =
iscsi+drbd for the block storage for VMs.<o:p></o:p></p><p =
class=3DMsoNormal>Can somebody give some advice for this? =
<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal>Thanks,<br>Cong<o:p></o:p></p><p =
class=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"Times New =
Roman","serif"'><o:p> </o:p></span></p><div class=3DMsoNormal =
align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman","serif"'><hr =
size=3D2 width=3D"100%" align=3Dcenter></span></div><p =
class=3DMsoNormal><span =
style=3D'font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'>Thi=
s e-mail message is for the sole use of the intended recipient(s) and =
may contain confidential and privileged information. Any unauthorized =
review, use, disclosure or distribution is prohibited. If you are not =
the intended recipient, please contact the sender by reply e-mail and =
destroy all copies of the original message. If you are the intended =
recipient, please be advised that the content of this message is subject =
to access, review and disclosure by the sender's e-mail System =
Administrator.</span><span style=3D'font-size:12.0pt;font-family:"Times =
New Roman","serif"'><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Times New =
Roman","serif"'><o:p> </o:p></span></p><div class=3DMsoNormal =
align=3Dcenter style=3D'text-align:center'><span =
style=3D'font-size:12.0pt;font-family:"Times New Roman","serif"'><hr =
size=3D2 width=3D"100%" align=3Dcenter></span></div><p =
class=3DMsoNormal><span =
style=3D'font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'>Thi=
s e-mail message is for the sole use of the intended recipient(s) and =
may contain confidential and privileged information. Any unauthorized =
review, use, disclosure or distribution is prohibited. If you are not =
the intended recipient, please contact the sender by reply e-mail and =
destroy all copies of the original message. If you are the intended =
recipient, please be advised that the content of this message is subject =
to access, review and disclosure by the sender's e-mail System =
Administrator.</span><span style=3D'font-size:12.0pt;font-family:"Times =
New Roman","serif"'><o:p></o:p></span></p></div></body></html>
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