[dm-devel] multipath features
Eli Stair
estair at ilm.com
Wed Oct 25 20:53:07 UTC 2006
Check multipath.conf.annotated in the source. This will retry n times
before failing.
no_path_retry {n}
I have repeatable issues with setting this higher than about 3-5
however, where IO queues (more like blocks) forever, even after failing
the path back... requiring a reboot, and resulting in data corruption. YMMV.
/eli
Peter Koutoupis wrote:
> I cannot seem to find an answer for this no matter where I look, but if
> I wanted to queue all IO if there was no path for a LIMITED time before
> it eventually times out, does a feature exist? Currently I am using "1
> queue_if_no_path" but the last thing I want is for a path to be
> unavailable and have it consume all host resources until the host cannot
> handle it anymore. Thanks in advance.
>
> Regards,
>
> Peter Koutoupis
> Systems Engineer
> Xyratex International, Inc.
> 1804 Centre Point Circle
> Suite 112
> Naperville, IL 60563 USA
> (630)364-7656
>
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