[DRBD-user] Connection issues

Lars Ellenberg lars.ellenberg at linbit.com
Mon Aug 13 17:51:02 CEST 2007


On Mon, Aug 13, 2007 at 09:07:05AM -0500, mark.potter at academy.com wrote:
> Late last night I started getting paged for a DRBD issue. It appears that 
> the two servers have lost connection for an unknown reason.
> 
> Here is an excerpt from the logs, it should be a complete startup:

> On plccnfs01 there are no drbd issues in /var/log/messages at all. The 
> previous log was from the secondary. At this time I cannot get the 
> secondary device to come up as part of the cluster. I have tried 
> restarting DRBD, rebooting the machine, using drbdadm, and pretty much 
> everything I could think of. Any help at all would be greatly appreciated.

sounds like broken NIC.
fix it.

transmit errors or dropped packages?
you can flood-ping the other node, also with larger packet size,
both directions? still no packet loss?

if you are sure that the network link between those nodes is ok,
try "drbdadm disconnect all; sleep 15; drbdadm connect all"
if that still does not help, I don't know...

-- 
: Lars Ellenberg                            Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH      Fax +43-1-8178292-82 :
: Vivenotgasse 48, A-1120 Vienna/Europe    http://www.linbit.com :
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