Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Tue, 4 Mar 2008, Florian Haas wrote: >>> Which brings up another question; how does DRBD >>> handle RAID set failures? Obviously, a mirrored drive's failure would be >>> transparent, but what about in the case of a striped set? Is there a way >>> to determine that a striped set has failed and is in rebuild, and >>> trigger DRBD to fail over to the secondary system where no rebuild is >>> taking place? Maybe a Linux-HA question? >> >> DRBD doesn't know and doesn't care if your RAID stripe is degraded or >> optimal. That's a job for something else. The underlying partition for >> DRBD is either there or isn't. There is nothing inbetween. If you want to >> fail over when the local RAID stripe is degraded, then you'll have to put >> in some external monitoring, possibly integrated with heartbeat. So yes, >> probably a Linux-HA question. > > Um, not quite. http://www.drbd.org/users-guide/s-handling-disk-errors.html This is about handling disk errors. I was talking about whether the underlying RAID stripe is degraded or optimal. Gordan