Hi

while recovering from a failure that impacted a node's power and its
raid controller's battery (ouch), I came across a question regarding
drbdadm verify I could not find the answer to. Maybe you guys can shed
some light.

In my situation, drbd thinks it did write data that might not have made
it to disk (read: simultaneous power and raid ctrl battery failure). I
can see that the root fs misses data about 1 minute of logs, so I assume
something like this for the drbd partitions as well.

So, say there is a cronjob on the node that had the outage which runs
drbdadm verify every day. Would blocks that changed on node2 (no outages
there) in the meantime be overwritten with what is empty/bad on node1?

I know it wouldn't be overwritten right away, just marked oos, but what
would happen on the next disconnect/connect?

Regards
Dominik
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