[Chester LUG] ISCSI boxes

[Thomas Prophett]

Hi Stuart,

I'm using the community edition of nexentastor 3.1.1 & its currently
connected to a ESXi cluster via iSCSI. The "community" edition has a few
limitations around iSCSI but it works fine for a Lab.

In theory you should see adequate read performance with 8GB ram coupled with
the zfs adaptive read cache.

I guess just try it and see, load 3.1.1 & bonnie.

All the best,

Thomas.

On 28 August 2011 19:58, Les Pritchard <les.pritchard at gmail.com> wrote:

> Ah yes, now I remember!
>
> I've double checked and the community edition does offer iSCSI (and fibre
> if you wish!). A quick look online I see a few results showing Nexenta is
> faster than OpenFiler on the iSCSI. After all it is ZFS under the hood, so
> it's professional level from the ground up.
>
> Nexenta (and any ZFS based systems) recommend you don't use hardware raid
> so you won't be missing anything by not having a card.
>
>
> On 28 August 2011 19:49, Stuart Burns <stuart.james.burns at gmail.com>wrote:
>
>> I didn't think Nexenta did ISCSI.
>>
>> This box has 8 GB ram also, so I think just cpu is letting it down. Shame
>> really. Speeds are terrible.
>>
>> On 28 August 2011 19:47, Les Pritchard <les.pritchard at gmail.com> wrote:
>>
>>> What was the reason you're not able to use Nexenta? You did mention
>>> something but I can't remember!
>>>
>>> Would be interesting to see how it would compare in speed.
>>> On Aug 28, 2011 6:18 PM, "Stuart Burns" <stuart.james.burns at gmail.com>
>>> wrote:
>>> > Hi Everyone,
>>> >
>>> > After ramming my little Proliant N36L full of Disks (8 TB total) and
>>> using
>>> > it as an ISCSI target on Openfiler, the performance when using SW raid
>>> is
>>> > absolutely appalling. My CPU load is 4.5+ (when running 3 vms with
>>> little
>>> > traffic)
>>> >
>>> > I suspect the 2 * 1.3 GHz CPUs are just not up to the job.
>>> >
>>> > Therefore, I am wondering, either new box with Openfler or an ISCSI
>>> drobo or
>>> > similar. Anyone got any recommendations.
>>> >
>>> > Stu
>>> >
>>> >
>>> > --
>>> > Stuart Burns
>>> > E: stuart.james.burns at gmail.com
>>> > M: [redacted]
>>>
>>> _______________________________________________
>>> Chester mailing list
>>> Chester at mailman.lug.org.uk
>>> https://mailman.lug.org.uk/mailman/listinfo/chester
>>>
>>>
>>
>>
>> --
>> Stuart Burns
>> E: stuart.james.burns at gmail.com
>> M: [redacted]
>>
>>
>>
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>> https://mailman.lug.org.uk/mailman/listinfo/chester
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>>
>
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