[DRBD-user] integrity failures

Lars Ellenberg lars.ellenberg at linbit.com
Fri May 6 09:09:12 CEST 2011

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


On Thu, May 05, 2011 at 07:54:15PM -0700, Ben Chobot wrote:
> I'm running DRBD 8.3.8 (GIT-hash:
> d78846e52224fd00562f7c225bcc25b2d422321d build by
> mockbuild at builder10.centos.org, 2010-06-04 08:04:27) and have recently
> turned on data-integrity-alg (to sha1) for my resources. Since then,
> I'm consistently (many times hourly) getting integrity failures for
> one of them. The peer says "Digest integrity check FAILED.", then
> hangs up and reconnects. Everything appears to keep going just fine,
> but surely this shouldn't be happening in the first place?
> 
> This seems pretty weird to me, because...
> 
> 1) all my resources are going over the same cable, and this particular resource has an issue way more than any others.
> 2) this particular resource is changing the least out of all my others.
> 3) this particular resource passed an online verify without any complaints.
> 
> I'd be happy to blame a NIC or the cable, except that all the other
> DRBD traffic is using the same hardware. Is there anything I can
> provide that might explain what's going on? If it matters this is on a
> dom0 xen kernel.

 From Lars Ellenberg,
 Feb 26, 2011
 Re: Explained: Digest integrity check FAILED

http://www.gossamer-threads.com/lists/drbd/users/21069#21069

... and following. Or read the whole thread.  There have been a few
threads, but this is the most recent "quality" one I'm aware of.

Hth,

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com



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