Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Wed, May 18, 2016 at 06:21:02PM +0800, d tbsky wrote: > hi: > I am using drbd 8.4.7 which comes from epel under scientific linux > 7.2. when I try "drbdadm verify res", it report there is oos. > > so I disconnect/connect the resource, the oos now becomes 0. but > when I verify it again, it report oos again. the oos amount is > different than previous, but the oos sector numbers are simliar. > > I also try "invalidate-remote" to resync all and then verify, but > it still report oos. > > I don't know what happened, it seems my cluster has big problems > with data consistency. but all the vm running above the drbd resources > seems fine, and I migrate them between hosts many times. > > is the behavior normal or I should replace the hardware now? Even though the subject does not mention drbd online verify, you still want to read this: "Re: Explained: Digest integrity check FAILED" http://lists.linbit.com/pipermail/drbd-user/2011-March/015751.html http://www.gossamer-threads.com/lists/drbd/users/21091?do=post_view_threaded#21091 or gmane or any other ML archive. you could run with data-integrity enabled for a while, and check for "Digest mismatch, buffer modified by upper layers during write" messages in kernel logs. -- : Lars Ellenberg : LINBIT | Keeping the Digital World Running : DRBD -- Heartbeat -- Corosync -- Pacemaker DRBD® and LINBIT® are registered trademarks of LINBIT __ please don't Cc me, but send to list -- I'm subscribed