[dm-devel] Help needed with RDAC in production environment!!
S. J. van Harmelen
svh at dds.nl
Thu Nov 15 07:51:08 UTC 2007
Thanks for the explanation. I had some troubles before, so I was afraid
that there was a problem with multipath/RDAC. Fortunately it turned out
to be something else...
And indeed, when sending some I/O only one of the paths became active :)
Sander
On Thu, 2007-11-15 at 08:33 +0100, Tore Anderson wrote:
> * S. J. van Harmelen
>
> > See the xen and vmware disks. They both display enable / enable instead
> > of active / enable. Is this correct? Or is a disaster waiting to happen?
>
> If I understand correctly, "enabled" means something like "ready to use,
> but not in active use". The preferred PG will become active ("in active
> use") once you send some I/O there. Try "dd if=/dev/mapper/wmware
> of=/dev/null count=10" or something like that, see if they go active then.
>
> The semantics had me confused for a while too. :-)
>
> Regards
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