PowerPath: IBM AIX host with reserve lock ODM attribute
Summary: PowerPath IBM AIX ODM reserve lock attributes not converting to reserve_policy.
Symptoms
PowerPath upgrade to 6.0.1
After users installing the Dell ODM fileset and running "cfgmgr hdisks," maintain a reserve lock when "PR_key" and "reserve_policy" are needed.
lsattr -El hdisk35 :- reserve_lock yes Reserve Device on open True lsattr -El hdisk36 :- reserve_lock yes Reserve Device on open True lsattr -El hdisk37 :- reserve_lock yes Reserve Device on open True lsattr -El hdisk38 :- reserve_lock yes Reserve Device on open True lsattr -El hdisk39 :- reserve_lock yes Reserve Device on open True lsattr -El hdiskpower0 :- reserve_policy no_reserve Reserve Policy used to reserve device on open. True lsattr -El hdiskpower1 :- reserve_policy no_reserve Reserve Policy used to reserve device on open. True lsattr -El hdiskpower2 :- reserve_policy no_reserve Reserve Policy used to reserve device on open. True
Cause
Previous configuration was missing "PR_key," and "reserve_policy" were missing during upgrade "powermt config" check finds "hdisks" missing and adds default "reserve_lock" which does not convert to "PR_key" and "reserve_policy."
Resolution
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First go to the path /usr/lib/objrepos in the affected host.
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Take the backup of the file "PdAt"
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Run the below commands to delete the "reserve_lock" on Symmetrix devices from the "PdAt."
odmdelete -o PdAt -q uniquetype="disk/fcp/SYMM* and attribute=reserve_lock" odmdelete -o PdAt -q uniquetype="disk/scsi/SYMM* and attribute=reserve_lock"
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Follow the steps mentioned in the Second possible workaround in hdisks are missing PR_key and reserve_policy ODM attributes. Can't change the reserve_policy of a hdiskpower device. Log in to Dell Support as a customer to view this article.
PowerPath 6.1 contains the fix for missing attributes.