10:46 a.m.
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Hi,
We have a production environment with KVM+centos6 and we want to switch to ovirt.
At this moment we have 12 VM on three independent server.
This VMs uses the local disks of servers, we don't have a central storage.
currently we have for ovirt
- Two Dell R710 with 128 gigs of ram.
- A third dell server for ovirt-engine.
- four 1 gb/sec NICs/ server.
- Smart GB switch
we would like make an ovirt environment with
- clusterized, redundant filesystem, data loss protection
- If a host goes to down the VMs could made a restart on the remain host
- LACP/bonding (mode 6) for fast I/O beetwen gluster hosts, we don't have 10Gbe nics
- 8 TB of disk capacity for VMs
we don't want:
- using hw raid on servers, because we need free disk tray for more capacity
My questions.
- Which glusterfs method is the best for us for performance?
- Can I make a real "performance" disk i/o by 4-4 NICs ? Or I need 10 Gbe nic
for this?
- How much disk need for good redundancy/performance? 4/server or 2/server ?
- What will the weak point our project?
Thanks in advance.
Tibor
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<html><body><div style=3D"font-family: times new roman, new york,
times, se=
rif; font-size: 12pt; color:
#000000"><div>Hi,</div><div><br></div><div>We
=
have a production environment with KVM+centos6 and we want to switch to ovi=
rt.</div><div>At this moment we have 12 VM on three independent
server.&nbs=
p;</div><div>This VMs uses the local disks of servers, we don't have a
cent=
ral storage.</div><div><br></div><div>currently we have for
ovirt</div><div=
<br></div><div>- Two Dell R710 with 128 gigs of
ram.</div><div><span style=
=3D"font-size: 12pt;">- A
third dell server for ovirt-engine.</span></div><=
div><span style=3D"font-size: 12pt;">- four 1 gb/sec NICs/
server.</span></=
div><div><span style=3D"font-size: 12pt;">- Smart GB
switch</span></div><di=
v><br></div><div>we would like make an ovirt environment
with</div><div><br=
</div><div>- clusterized, redundant filesystem, data loss
protection</div>=
<div>- If a host goes to down the VMs could made a
restart on the remain ho=
st</div><div>- LACP/bonding (mode 6) for fast I/O beetwen gluster hosts, we=
don't have 10Gbe nics</div><div>- 8 TB of disk capacity for
VMs</div><div>=
<br></div><div>we don't
want:</div><div><br></div><div>- using hw raid on s=
ervers, because we need free disk tray for more
capacity</div><div><br></di=
v><div>My questions.</div><div><br></div><div>-
Which glusterfs method is t=
he best for us for performance?</div><div>- Can I make a real
"performance"=
disk i/o by 4-4 NICs ? Or I need 10 Gbe nic for
this?</div><di=
v>- How much disk need for good redundancy/performance? 4/server or 2/serve=
r ? </div><div>- What will the weak point our
project?</div><div><br><=
/div><div>Thanks in
advance.</div><div><br></div><div>Tibor</div><div><br><=
/div><div><br></div><div><br></div><div><br></div><div><br></div></div></bo=
dy></html>
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5:15 p.m.
On 07/16/2014 06:46 PM, Demeter Tibor wrote:
Hi,
We have a production environment with KVM+centos6 and we want to switch
to ovirt.
At this moment we have 12 VM on three independent server.
This VMs uses the local disks of servers, we don't have a central storage.
currently we have for ovirt
- Two Dell R710 with 128 gigs of ram.
- A third dell server for ovirt-engine.
- four 1 gb/sec NICs/ server.
- Smart GB switch
we would like make an ovirt environment with
- clusterized, redundant filesystem, data loss protection
- If a host goes to down the VMs could made a restart on the remain host
- LACP/bonding (mode 6) for fast I/O beetwen gluster hosts, we don't
have 10Gbe nics
- 8 TB of disk capacity for VMs
we don't want:
- using hw raid on servers, because we need free disk tray for more capacity
My questions.
- Which glusterfs method is the best for us for performance?
vijay?
- Can I make a real "performance" disk i/o by 4-4 NICs ?
Or I need 10
Gbe nic for this?
- How much disk need for good redundancy/performance? 4/server or
2/server ?
- What will the weak point our project?
make sure to use gluster with replica 3, which needs 3 servers?
maybe use hosted engine to remove need for dedicated server for it?
Thanks in advance.
Tibor
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Users(a)ovirt.org
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5:06 p.m.
On 07/22/2014 06:15 PM, Itamar Heim wrote:
On 07/16/2014 06:46 PM, Demeter Tibor wrote:
> Hi,
>
> We have a production environment with KVM+centos6 and we want to switch
> to ovirt.
> At this moment we have 12 VM on three independent server.
> This VMs uses the local disks of servers, we don't have a central
> storage.
>
> currently we have for ovirt
>
> - Two Dell R710 with 128 gigs of ram.
> - A third dell server for ovirt-engine.
> - four 1 gb/sec NICs/ server.
> - Smart GB switch
>
> we would like make an ovirt environment with
>
> - clusterized, redundant filesystem, data loss protection
> - If a host goes to down the VMs could made a restart on the remain host
> - LACP/bonding (mode 6) for fast I/O beetwen gluster hosts, we don't
> have 10Gbe nics
> - 8 TB of disk capacity for VMs
>
> we don't want:
>
> - using hw raid on servers, because we need free disk tray for more
> capacity
>
> My questions.
>
> - Which glusterfs method is the best for us for performance?
vijay?
A replicated gluster volume does help for availability and performance.
Please ensure that you optimize the gluster volume for virtualization by
applying the performance settings in virt profile [1].
> - Can I make a real "performance" disk i/o by 4-4 NICs
? Or I need 10
> Gbe nic for this?
> - How much disk need for good redundancy/performance? 4/server or
> 2/server ?
> - What will the weak point our project?
make sure to use gluster with replica 3, which needs 3 servers?
maybe use hosted engine to remove need for dedicated server for it?
Using replica 3 volumes would provide better protection for split-brains.
Thanks,
Vijay
[1]
https://github.com/gluster/glusterfs/blob/master/extras/group-virt.example
8:18 a.m.
Hi,
Thank you for you reply.
Is it better than a replica beetwen two node?
My plan is one server for ovirt (based on hw raid10) and two server for replication.
Is better with 3 servers?
Also, is 1GBe NIC will be enought for performance? I would use bonding.
Thanks
Demeter Tibor
----- Eredeti üzenet -----
On 07/22/2014 06:15 PM, Itamar Heim wrote:
> On 07/16/2014 06:46 PM, Demeter Tibor wrote:
>> Hi,
>>
>> We have a production environment with KVM+centos6 and we want to switch
>> to ovirt.
>> At this moment we have 12 VM on three independent server.
>> This VMs uses the local disks of servers, we don't have a central
>> storage.
>>
>> currently we have for ovirt
>>
>> - Two Dell R710 with 128 gigs of ram.
>> - A third dell server for ovirt-engine.
>> - four 1 gb/sec NICs/ server.
>> - Smart GB switch
>>
>> we would like make an ovirt environment with
>>
>> - clusterized, redundant filesystem, data loss protection
>> - If a host goes to down the VMs could made a restart on the remain host
>> - LACP/bonding (mode 6) for fast I/O beetwen gluster hosts, we don't
>> have 10Gbe nics
>> - 8 TB of disk capacity for VMs
>>
>> we don't want:
>>
>> - using hw raid on servers, because we need free disk tray for more
>> capacity
>>
>> My questions.
>>
>> - Which glusterfs method is the best for us for performance?
>
> vijay?
>
A replicated gluster volume does help for availability and performance.
Please ensure that you optimize the gluster volume for virtualization by
applying the performance settings in virt profile [1].
>> - Can I make a real "performance" disk i/o by 4-4 NICs ? Or I need
10
>> Gbe nic for this?
>> - How much disk need for good redundancy/performance? 4/server or
>> 2/server ?
>> - What will the weak point our project?
>
> make sure to use gluster with replica 3, which needs 3 servers?
> maybe use hosted engine to remove need for dedicated server for it?
>
Using replica 3 volumes would provide better protection for split-brains.
Thanks,
Vijay
[1]
https://github.com/gluster/glusterfs/blob/master/extras/group-virt.example
3820
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3828
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3 comments
3 participants
participants (3)
-
Demeter Tibor -
Itamar Heim -
Vijay Bellur