PowerPath: IBM AIX host with reserve lock ODM attribute

Summary: PowerPath IBM AIX ODM reserve lock attributes not converting to reserve_policy.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

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

  1. First go to the path /usr/lib/objrepos in the affected host.

  2. Take the backup of the file "PdAt"

  3. 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"
  4. 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.

 

Article Properties
Article Number: 000171373
Article Type: Solution
Last Modified: 05 مايو 2026
Version:  6
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