> On Thu, Sep 15, 2011 at 11:14:53AM +0200, Michael Schwartzkopff wrote: > > > On Thu, Sep 15, 2011 at 10:29:47AM +0200, Michael Schwartzkopff wrote: > > > > Hi, > > > > > > > > After fixing an other error I started to see the following error on > > > > my DRBD: > > > > > > > > kernel: block drbd0: BAD! BarrierAck #2778697761 received, expected > > > > #2778697760! > > > > > > > > Can anybody explain what the BarrierAck error means? > > > > What is the cause of the problem? > > > > How to solve the problem? > > > > > > DRBD version, > > > > 8.3.10 > > The in-tree or the out-of-tree thing?
In-tree.
We have the options:
disk {
no-disk-barrier;
no-disk-flushes;
no-disk-drain;
}
and
mount-options: type ext4 (rw,noatime,data=writeback)
Should we use disk-barrier? Or the mount option nobarrier?
Thanks for your help.
--
Dr. Michael Schwartzkopff
Guardinistr. 63
81375 München
Tel: (0163) 172 50 98
Fax: (089) 620 304 13
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