[Lustre-discuss] Has anyone had experience with heartbeat and drdb providing full redundancy on lustre clusters

[Thomas Roth]

Hi,

we are using Heartbeat+DRBD on our MGS/MDT.
DRBD work fine, we have been using it for backing up the MDT, upgrading
the Lustre version, and of course for failover.
Heartbeat proves to be much trickier. Since our network is rather shaky,
we are suffering from late heartbeats, Heartbeat trying to fail over for
no apparent reason, Stonith for no good reason... In addition, if one
umounts the MDT, it always starts with a delay of 330sec, and Hearbeat
always gives up on the resource MDT after 20000ms - no matter what I put
into the cib.xml, no matter the Lustre timeouts. So one always needs to
force the umount or more likely a reboot - not a problem with a reliable
Stonith-procedure ;-)

Thomas

Christopher Deneen wrote:
> trying to get a feel if it's worth investing time to implement.
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss

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