Reserved storage for XenServer?

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iMelnik2011-09-23 11:41:03

NAS

iMelnik, 2011-09-23 11:41:03

It is necessary to make storage available via iSCSI with physical redundancy (two devices in a rack with identical data). The total volume does not exceed 8TB, but about 40-60 virtual machines will be hosted on it.
At the same time, I want to use the entire hardware solution.
Looked at Synology, QNAP and a few more from HCL .
I just can’t understand how the solutions are clustered ( HA-cluster ).
It would be desirable that at death of one piece of iron, the second as quickly as possible entered into its place.
Tell me, what is better to use in the non-premium segment?

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4 answer(s)

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omnimod, 2011-09-26
@omnimod

I understand that the budget is very small? Then forget about synchronization.
If you really need synchronization and storage clustering, then you can look towards HP P4000 (Lefthand), Starwind Software iSCSI SAN, Falconstor NSS.
Otherwise: Linux + DRBD + IETD + Heartbeat.

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Qwadrat, 2011-09-23
@Qwadrat

It is necessary to look at the pieces of iron that can real-time replication, the same QNAP has such. Scheduled replication will not provide the required reliability.

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Alexander, 2011-09-26
Yankovskiy @Suncheez

I conjure against Synology and QNAP. I have not worked with rack solutions, but SOHO is a hopeless horror.
Take something more or less proven, such as HP, Adaptec, etc.
If the budget is very small, then it will be more reliable to assemble a custom iSCSI on a fra in a rack-mount case.

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bear11, 2011-09-26
@bear11

openfiler.com can do this out of the box (iscsi target of two computers, with storage synchronized via DRBD.). I recommend downloading and watching.