[DRBD-user] To stonith or not to stonith?

Lars Ellenberg Lars.Ellenberg at linbit.com
Tue Aug 30 11:24:29 CEST 2005

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

/ 2005-08-29 13:39:20 -0500
\ Dave Dykstra:
> Drbd will prevent data corruption on its own, but stonith with drbd can
> give you increased uptime because there are cases when a standby drbd or
> heartbeat will refuse to take over until the formerly active one has been
> proven to be shut down.

which are: ... ?

we at LINBIT make sure that heartbeat has as many communication
channels as possible, but try to avoid stonith in most deployments:
we had cases where heartbeat would reboot one node, and might have
stonithed the other at the same event -- not exactly heartbeats fault,
more "misbehaving resource agents", but still very annoying.

we feel better if we automatise as less as possible,
though obviously as much as necessary or convenient.

as far as I can see, stonith with drbd does not really buy you anything.

: Lars Ellenberg                                  Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH            Fax +43-1-8178292-82 :
: Schoenbrunner Str. 244, A-1120 Vienna/Europe   http://www.linbit.com :
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