[dm-devel] Multipath on STK OPENStorage D240

Guido Guenther agx at sigxcpu.org
Thu May 4 13:37:53 UTC 2006


On Thu, May 04, 2006 at 08:35:23AM -0400, Philip R. Auld wrote:
> Hi,
> 
> Rumor has it that on Thu, May 04, 2006 at 09:41:20AM +0200 Guido Guenther said:
> > Hi,
> > when using path_checker readsector0 on the above machine the box stalls
> > every 5 seconds when checking the currently nonactive path. Same for
> > path_checker tur. Is there a way to avoid this? I'd consider writing a
> > specific checker but am lacking any documentation.
> 
> This thing is a preferred path array. I can see how readsector0
> is probably the wrong choice of checker. I imagine it causes 
> a cache flush from the preferred controller. Odd that the tur
> checker has the same behavior. If you want to code something 
Well, can I check which check is really being used, if not I'll hack
that into the daemon next week? I noticed that typos in multipath.conf
are being silently ignored. 
Cheers,
 -- Guido
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