[DRBD-user] BUG: Uncatchable DRBD out-of-sync issue

Stanislav German-Evtushenko ginermail at gmail.com
Mon Feb 24 18:09:59 CET 2014

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

>> Can LVM cause these OOS?
> Very unlikely.

I have another idea here. I'll try to switch drive options for KVM from
cache=none to cache=directsync or cache=writethrough. In that case KVM has
to ensure that data is on disk. I suppose this means (with disk-flushes and
disk-barrier disabled) that KVM will ensure data being written to DRBD
layer and DRBD will ensure it is in RAID cache.

Will come back with results in 2-3 weeks.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20140224/a36489d7/attachment.htm>

More information about the drbd-user mailing list