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HBA lpfc settings

Question asked by Jonathan White on Mar 27, 2018

I have a couple of queries on the Emulex HBA driver settings for VSP attachment: the OpenSystems Host Attachment Guide  MK-90RD7037-12 around p 2-11 refers to setting the "TOV" value on the HBA to 60 seconds, and gives suggested queue depth per LU and port values.

 

60s seems quite high for a timeout value in terms of path failover - what do people think ?

 

Also what lpfc parameters need to set to implement the recommendations? Is "TOV" implemented as lpfc_devloss_tmo ?

e.g.

lpfc_devloss_tmo=60

lpfc_hba_queue_depth=2048

lpfc_lun_queue_depth=32

 

 

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