[Users] A question about Node RAM

[Kirill Korotaev]

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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