[Pacemaker] SBD Fencing daemon: explain me more clear

Lars Marowsky-Bree lmb at novell.com
Tue Jun 15 14:36:54 UTC 2010


On 2010-06-15T17:32:51, Aleksey Zholdak <aleksey at zholdak.com> wrote:

> >Uhm, what is unclear about http://www.linux-ha.org/wiki/SBD_Fencing ? It
> >does explain how sbd works (not all of the timeouts though).
> Exacly! It does not explain loop timeout, for example...

The loop timeout is just the time between attempts to read from the sbd
device. I've never seen it modified, and there isn't a good reason to.

> >Depending on the watchdog device you are using, it is conceivable that
> >it refuses to accept a 180s watchdog timeout. But without knowing the
> >details of your configuration, or whether sbd or pacemaker/corosync
> >causes the fence, it is impossible to say.
> We use HP DL360 G6 servers with iLO2 on the board (if this helps).
> How do I know why its watchdog does not accept required timeout?

You'd have a message in the logs about the driver rejecting the timeout,
I think.


Regards,
    Lars

-- 
Architect Storage/HA, OPS Engineering, Novell, Inc.
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde





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