[CentOS] What NAS device(s) do you use? And why?
John R Pierce
pierce at hogranch.com
Mon Dec 13 16:55:07 UTC 2010
On 12/13/10 12:44 AM, RedShift wrote:
> I'd stay away from AoE for high availability, I've tried it at home but performance can fluctuate and the AoE driver present in CentOS 5 is way too old. I wasn't able to build a HA setup without corrupting data when failover occured.
>
Any HA block storage structure will have data corruption issues on
failover if there was dirty write cache on the failed controller, unless
it implements some form of cache mirroring. cache mirroring is rather
expensive performance-wise and not doable with any off-the-shelf
software I'm aware of.
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