Hi All,

 

Just browsing through the release notes of the latest ESXi update and can
see this

 

During transient error conditions, I/O to a device might repeatedly fail and
not failover to an alternate working path
During transient error conditions like BUS BUSY, QFULL, HOST ABORTS, HOST
RETRY and so on, you might repeatedly attempt commands on current path and
do not failover to another path even after a reasonable amount of time.

This issue is resolved in this release. During occurrence of such transient
errors, if the path is busy after a couple of retries, the path state is now
changed to DEAD. As a result, a failover is triggered and an alternate
working path to the device is used to send I/Os.

 

Just wondering if this has any positive effect on the problems many of us
experience with LIO and ESXi entering a never ending loop when a RBD hangs
for more than a couple of seconds? I can probably put something together and
test this next week, but would be interested in hearing from anyone else.

 

Copying you in Mike as I don't know if this would be interesting to you or
not?

 

Nick




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