[Beowulf] Lustre failover
hahn at mcmaster.ca
Wed Sep 10 06:02:17 PDT 2008
> With OST servers it is possible to have a load-balanced active/active
> Each node is the primary node for a group of OSTs, and the failover
> node for other
> Anyone done this on a production system?
we have a number of HP's Lustre (SFS) clusters, which use
dual-homed disk arrays, but in active/passive configuration.
it works reasonably well.
> Experiances? Comments?
active/active seems strange to me - it implies that the bottleneck
is the OSS (OST server), rather than the disk itself. and a/a means
each OSS has to do more locking for the shared disk, which would seem
to make the problem worse...
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