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I would test the effective network bandwith with iperf.

Then I would test the speed of the cinder backend by mounting the
volume locally and running, for instance, iozone.

Finally, I would test the performance of the iSCSI backend by mounting
the volume on the compute node (or another node) via iSCSI and running
iozone on top of it.

But I have to admint I don't have much experience with iSCSI :)

.a.

On Fri, Nov 15, 2013 at 3:30 AM, Jitendra Kumar Bhaskar
<jitendra.b at pramati.com> wrote:
> Please make sure from block storage to switch and from switch to compute
> node connectivity is in GBs. Means all ports should be GBs.
>
> Regards
> Jitendra Bhaskar
>
>
>
>
>
>
> On Fri, Nov 15, 2013 at 6:20 AM, Dnsbed Ops <ops at dnsbed.com> wrote:
>>
>> They are 1000Mb links.
>>
>>
>> On 2013-11-15 1:40, Razique Mahroua wrote:
>>>
>>> Hi,
>>>
>>> What is the network link between both?
>>>
>>> On 13 Nov 2013, at 19:38, Dnsbed Ops wrote:
>>>
>>>> Hi,
>>>>
>>>> The design is pretty simple.
>>>> We run nova-compute for VMs management, for example, a server with
>>>> 128GB memory, 12 cores CPU, 300GB SAS (RAID1) disks, to create 20 VMs.
>>>> And, we run cinder as the separated storage service to provide block
>>>> storage for the VMs. For example, each VM gets a block storage with
>>>> 100GB.
>>>>
>>>> More details,
>>>>
>>>> OS: ubuntu 12.04
>>>> Hypervisor: KVM
>>>> Networking: nova-network for FlatDHCP,multi-host
>>>> glance backend: file
>>>> cinder backend: ceph
>>>> live migration: no need
>>>> object storage: no need
>>>>
>>>> Thanks.
>>>>
>>>> On 2013-11-14 11:09, Razique Mahroua wrote:
>>>>>
>>>>> #2: What's the implementation design?
>>>
>>>
>>
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>
>
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