On 03/15/2013 12:24 PM, Bart Van Assche wrote:
On 03/15/13 12:55, Hannes Reinecke wrote:
And the LLDD is forced into error recovery which'll take _ages_ as each
and every command send during error recovery will time out.
Hello Hannes,
I'm analyzing a related but not identical issue with SRP. It would help
if you could tell with which LLDD you ran into this issue and with which
values of fast_io_fail_tmo and dev_loss_tmo.
Most of the cases I've seen have involved lpfc (although I don't think
it's in any way exclusive to that LLDD). Even with very low
fast_io_fail_timeout/dev_loss_timeout (<5/10) the eh is busy for 10m or
longer before IO fails and multipath is able to react to the problem.
Regards,
Bryn.
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