[Linux-cluster] Clustered VGs with many PVs slow to activate

Christopher Barry Christopher.Barry at qlogic.com
Fri Jun 29 16:48:24 UTC 2007


On Fri, 2007-06-29 at 17:37 +0100, Bryn M. Reeves wrote:
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> Christopher Barry wrote:
> > What's interesting to me here is the huge difference in real vs. user or
> > sys time. It appears to spend most of the time waiting around.
> > 
> > Can you trace the process to see what it's doing and where it sits and
> > waits?
> > 
> 
> It'll be waiting for I/O to all the metadata areas on all the different PVs.
> 
> Regards,
> Bryn.
> 
> 
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And is this currently a serial event?


-- 
Regards,
-C




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