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Description of problem:

The heartbeat setting in RHEL6 lpfc (lpfc_enable_hba_heartbeat) is enabled by default. This is known to trigger issues wherein the Emulex FC ports sometimes get offlined during IO - refer bug 599487 for details.

So to avoid hitting this, it is now recommended to disable the lpfc heartbeat by setting lpfc_enable_hba_heartbeat=0. This should now be made the default setting in RHEL6 going forward.

Rob, can you attach a RHEL 6 patch, even if it is the same as what's in :

https://bugzilla.redhat.com/show_bug.cgi?id=599487#c59

Thanks!

Requesting this for 6.0.z, since the same patch is already queued up for 5.5.z.

Created attachment 464357 [details]
patch do disable heartbeats by default for rhel6.1 as provided by Emulex.

See:

https://bugzilla.redhat.com/show_bug.cgi?id=655935#c6

*** This bug has been marked as a duplicate of bug 655935 ***