New subject: Performance issue for GlusterFS as the block storage for VMs

15 Jan 2015

      --_000_ED08B56256B38842A463A2A0804C5AC0326B0A45DFsvrcaexch1atg_
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I am using iometer (http://www.iometer.org/) to test the IOPS from one of t=
he vm.
As for IOPS is more trying to test the performance of block, rather than re=
al 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 a=
nd 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 stro=
ng  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 sto=
rage for VMs

Do you have any metrics to give an idea of the difference. I am using NFS r=
ight 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 a=
ny 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> [mailto:users=
-bounces@ovirt.org] On Behalf Of Yue, Cong
Sent: Thursday, January 15, 2015 10:57 AM
To: users@ovirt.org<mailto: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 wo=
rse 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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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><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=3D"MsoNormal"><span style=3D"color:#1F497D">As for IOPS is more tr=
ying to test the performance of block, rather than real file transfer.<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">In my environment, I a=
m 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></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">This is my current res=
ult with iometer.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<table class=3D"MsoNormalTable" border=3D"0" cellspacing=3D"0" cellpadding=
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llapse:collapse">
<tbody>
<tr style=3D"height:29.25pt">
<td width=3D"49" nowrap=3D"" style=3D"width:37.0pt;border:solid windowtext =
1.0pt;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">Test ID<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border-top:solid windowtext 1.0pt=
;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none;ba=
ckground:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Application<o:p></o:p></span></p>
</td>
<td width=3D"90" style=3D"width:67.5pt;border:solid windowtext 1.0pt;backgr=
ound:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Block Size (Bytes)<o:p></o:p></span></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border:solid windowtext 1.0pt;borde=
r-left:none;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Read/Write %<o:p></o:p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border:solid windowtext 1.0pt;bord=
er-left:none;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt"=
...
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Random/Sequential %<o:p></o:p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border:solid windowtext 1.0pt;bord=
er-left:none;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt"=
...
...
</span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">75%/25%<o:p></o:=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border:solid windowtext 1.0pt;borde=
r-left:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">2<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">75%/25%<o:p></o:=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">3<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">75%/25%<o:p></o:=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">4<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:29.25=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">5<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">6<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">7<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
</tr>
<tr style=3D"height:15.75pt">
<td width=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">8<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">9<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">10<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">11<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">12<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">13<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">14<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
...
</span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">0%/100%<o:p></o:=
...
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">455.49<o:p></o:p=
</span></p>
</td>
</tr>
</tbody>
</table>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">The issue for GlusterF=
S I found is
<o:p></o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"color:#1F497D"><span style=3D"m=
so-list:Ignore">-<span style=3D"font:7.0pt "Times New Roman"">&nb=
sp;        
</span></span></span><![endif]><span style=3D"color:#1F497D">It can not ret=
ain the nature of SSD and SAS, such as SAS is strong  for sequential a=
ccess. SSD is strong for random access.<o:p></o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"color:#1F497D"><span style=3D"m=
so-list:Ignore">-<span style=3D"font:7.0pt "Times New Roman"">&nb=
sp;        
</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=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Thanks,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Cong<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:"=
;Tahoma","sans-serif"">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif""> Donny Da=
vis [mailto:donny@cloudspin.me]
<br>
<b>Sent:</b> Thursday, January 15, 2015 10:27 AM<br>
<b>To:</b> Yue, Cong; users@ovirt.org<br>
<b>Subject:</b> RE: [ovirt-users] Performance issue for GlusterFS as the bl=
ock storage for VMs<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Do you have any metric=
s to give an idea of the difference. I am using NFS right now, and I am mig=
rating to Gluster. I have the gluster system up, and I see that it seems to=
...
</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:"=
;Tahoma","sans-serif"">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">
<a href=3D"mailto:users-bounces@ovirt.org">users-bounces@ovirt.org</a> [<a =
<p class=3D"MsoNormal"><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=3D"84" 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=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">iscsi-hdd<o:p></o:p></span></p>
</td>
<td width=3D"78" style=3D"width:58.5pt;border:solid windowtext 1.0pt;border=
-left:none;background:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">iscsi-ssd<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:solid windowtext 1.0pt;b=
order-left:none;border-bottom:none;border-right:solid windowtext 1.0pt;back=
ground:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Guster,HDD<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:solid windowtext 1.0pt;b=
order-left:none;border-bottom:none;border-right:solid windowtext 1.0pt;back=
ground:#00B0F0;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal"><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=3D"49" nowrap=3D"" valign=3D"bottom" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">1<o:p></o:p></span></p>
</td>
<td width=3D"198" style=3D"width:148.25pt;border:none;border-bottom:solid w=
indowtext 1.0pt;background:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Web File Server<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">4K<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">95%/5%<o:p></o:p=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">195.28<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">2400.63<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border:solid windowtext 1.0pt;borde=
r-left:none;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">208.50<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Web File Server<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">8K<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">95%/5%<o:p></o:p=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">193.97<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">2225.73<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">179.89<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Web File Server<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">64K<o:p></o:p></=
span></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">95%/5%<o:p></o:p=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">180.50<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">1055.05<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">158.28<o:p></o:p=
pt">
<p class=3D"MsoNormal"><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=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">8K<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">70%/30%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">100%/0%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">163.60<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">2415.90<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:29.25pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">132.13<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Exchange Email<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">4K<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">67%/33%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">100%/0%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">167.03<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">2685.33<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">145.92<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">OS Drive<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">8K<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">70%/30%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">100%/0%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">163.60<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">2407.02<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">146.11<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Decision Support System<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">1M<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">100%/0%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">100%/0%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">74.24<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">207.42<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">81.14<o:p></o:p>=
</span></p>
</td>
<td width=3D"102" style=3D"width:76.8pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">112.20<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">File Server<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">8K<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">90%/10%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">75%/25%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">191.20<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">2102.32<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">359.54<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Video on Demand<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">512K<o:p></o:p><=
/span></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">100%/0%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">100%/0%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">100.32<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">327.19<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">136.66<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Traffic Simulation<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">8K<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">50%/50%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">75%/25%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">IOPS<o:p></o:p><=
/span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">238.28<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">1923.91<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">301.05<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Web Server Logging<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">8K<o:p></o:p></s=
pan></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">0%/100%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">0%/100%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">IOPS<o:p></o:p></span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">3488.47<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">3644.33<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">290.33<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">SQL Server Logging<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">64K<o:p></o:p></=
span></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">0%/100%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">0%/100%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">IOPS<o:p></o:p></span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">1423.29<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">1375.33<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">182.67<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">OS Paging<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">64K<o:p></o:p></=
span></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">90%/10%<o:p></o:=
p></span></p>
</td>
<td width=3D"150" style=3D"width:112.8pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">0%/100%<o:p></o:=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">IOPS<o:p></o:p></span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">1215.74<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">1211.01<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">381.17<o:p></o:p=
pt">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:black">Media Streaming<o:p></o:p></span></p>
</td>
<td width=3D"90" 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=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">64K<o:p></o:p></=
span></p>
</td>
<td width=3D"114" style=3D"width:85.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;back=
ground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">98%/2%<o:p></o:p=
p></span></p>
</td>
<td width=3D"144" style=3D"width:107.7pt;border-top:none;border-left:none;b=
order-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;bac=
kground:#D9D9D9;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"color:black">IOPS<o:p></o:p></span></p>
</td>
<td width=3D"84" nowrap=3D"" valign=3D"bottom" style=3D"width:63.0pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">1350.96<o:p></o:p></span></p>
</td>
<td width=3D"78" nowrap=3D"" valign=3D"bottom" style=3D"width:58.5pt;border=
-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-righ=
t:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right"><span sty=
le=3D"color:black">1365.22<o:p></o:p></span></p>
</td>
<td width=3D"102" style=3D"width:76.5pt;border-top:none;border-left:none;bo=
rder-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padd=
ing:0in 5.4pt 0in 5.4pt;height:15.75pt">
<p class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span s=
tyle=3D"font-size:10.5pt;font-family:Consolas;color:black">457.28<o:p></o:p=
 provision disks faster than my NFS.
 I haven’t used any real measurement tools to get actual metrics, thi=
s is all perceived.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Do you have an operati=
onal gluster?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Do what are you using =
right now?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p> </o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Donny D<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">cloudspin.me<o:p></o:p=
href=3D"mailto:users-bounces@ovirt.org">mailto:users-bounces@ovirt.org</a>]
<b>On Behalf Of </b>Yue, Cong<br>
<b>Sent:</b> Thursday, January 15, 2015 10:57 AM<br>
<b>To:</b> <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=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Hi <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I have one question about whether GlusterFS is the s=
uitable solution to be used as the block storage for VMs.<o:p></o:p></p>
<p class=3D"MsoNormal">The failure tolerant and scalability is good for Glu=
sterFS, but in my test, it seems the iops is pretty bad. In some blog, it s=
aid, it is even with worse performance than normal NFS.<o:p></o:p></p>
<p class=3D"MsoNormal">Should I use iscsi+drbd for the block storage fo=
r VMs.<o:p></o:p></p>
<p class=3D"MsoNormal">Can somebody give some advice for this? <o:p></o:p><=
/p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Thanks,<br>
Cong<o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Ti=
mes New Roman","serif""><o:p> </o:p></span></p>
<div class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span=
 style=3D"font-size:12.0pt;font-family:"Times New Roman","se=
rif"">
<hr size=3D"2" width=3D"100%" align=3D"center">
</span></div>
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--_000_ED08B56256B38842A463A2A0804C5AC0326B0A45DFsvrcaexch1atg_--

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

Yue, Cong

Donny Davis

Yue, Cong

Donny Davis

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participants (2)