EMC TPD emcpower names are changing after every reboot with VxVM 6.0.1.200
Article ID: 100009494
Updated On:
Cause
# powermt display dev=all|grep emcpower
Pseudo name=emcpower0a
Pseudo name=emcpower2558a
Pseudo name=emcpower2638a
Pseudo name=emcpower2639a
Pseudo name=emcpower2640a
Pseudo name=emcpower2641a
Pseudo name=emcpower2642a
Pseudo name=emcpower2643a
Pseudo name=emcpower2644a
...
After the reboot, the following pseudo names were seen:
# powermt display dev=all|grep emcpower
Pseudo name=emcpower0a
Pseudo name=emcpower100a
Pseudo name=emcpower101a
Pseudo name=emcpower102a
Pseudo name=emcpower103a
Pseudo name=emcpower105a
Pseudo name=emcpower107a
Pseudo name=emcpower109a
Pseudo name=emcpower110a
...
The issue is applicable to VxVM 5.0MP3RP3 and later, and seen with Powerpath 5.x
The PowerPath pseudo device mappings changed after every reboot, which was caused by VxVM running "powermt display unmanaged" to find unmanaged devices so that these could be skipped by the Powerpath ASL. However, VxVM issued the EMC powermt command before Powerpath had started.
To illustrate the problem, in the incident concerned, prior to the reboot, the following pseudo names were seen:
Resolution
The fix is scheduled to be built into 6.1 later in 2013. A fix is also available as a private hot-fix - please contact Veritas Technical Support for further details.
Applies To
6.0.1 VxVM
5.x Powerpath
Solaris 10
Issue/Introduction
