| Re: A question about Node RAM [message #44838 is a reply to message #44837] |
Sat, 07 January 2012 17:29   |
Kirill Korotaev
Messages: 137
Registered: January 2006
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Senior Member |
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On Jan 7, 2012, at 21:21 , Tim Small wrote:
> On 07/01/12 08:33, Kirill Korotaev wrote:
>>> (maybe pacemaker with drbd, or glusterfs, or sheepdog) to distribute the storage between the nodes, and allow moving VMs between nodes.
>>
>> do not recomment gluster or sheepdog - they are nowhere near production quality. So speaking about reliability - a described HW with SAS drives RAID is by far more reliable.
>>
>
> I've not done much with gluster, but I know people who have it in
> production and are happy with it. Sheepdog looks very promising - we've
> had a bit of a play with it and plan to do more investigation in the
> future... We have drbd in production and are happy with it.
How big total storage these people are running with gluster?
> Over the years, I've had so much trouble with hardware RAID, that I now
> avoid it if at all possible.
>
> My experience with real top-end hardware has been that you get to find
> lots of interesting new bugs (both software and hardware) because you're
> using relatively unusual hardware - you end up with a machine which is
> like 0.01% of the global machines running Linux instead of 5% or
> whatever. When you do hit such bugs, often the developers can't
> reproduce the issue because they don't have access to the same hardware...
>
> RAISe - Rudundant Array of Inexpensive Servers! :-)
>
> Tim.
>
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