Service Processor (SP)/ILOM hang following installation of Oracle Hardware Management Pack 2.3.2 (or earlier)

Asset ID:	1-72-2045912.1
Update Date:	2017-05-17
Keywords:

Solution Type Problem Resolution Sure

Solution 2045912.1 : Service Processor (SP)/ILOM hang following installation of Oracle Hardware Management Pack 2.3.2 (or earlier)

Applies to:

SPARC T4-2 - Version All Versions to All Versions [Release All Releases]
SPARC T4-4 - Version All Versions to All Versions [Release All Releases]
SPARC T4-1 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

Users are reporting Service Processor performance degradation and periodic ILOM hangs after installing Oracle Hardware Management Pack (HMP) version 2.3.2 on systems configured with Oracle VM I/O domains.

The hangs appear to occur much quicker on more recent firmwares, such as ILOM 3.2.5.3.b which is used in T4-x system firmware 8.7.2.b & in T5-x system firmware 9.4.2.e.

Affected releases;

Solaris 10 with Oracle HMP patch 20957445 installed
Solaris 11, 11.1 with Oracle HMP patch 20957457 installed
Solaris 11.2 SRU 8.5

Oracle HMP is installed by default with Solaris 11.2 with release 2.3.2 integrated into SRU8.5 and later.

To confirm the version currently installed please use the following steps;

Solaris 10

# pkginfo -l ORCLhmp-libs
PKGINST: ORCLhmp-libs
NAME: Oracle Hardware Management Pack - Libraries
CATEGORY: system
ARCH: sparc
VERSION: 2.3.2.2,REV=2015.05.29.18.37
BASEDIR: /
VENDOR: Oracle Corporation
DESC: Oracle storage hardware device libraries
PSTAMP: bur-fishwrap-sparc-0020150529184011
INSTDATE: Oct 26 2015 10:59
HOTLINE: Please contact your local service provider
STATUS: completely installed
FILES: 113 installed pathnames
9 shared pathnames
17 directories
41 executables
138239 blocks used (approx)

Solaris 11/Solaris 11.1

# pkg info -l hmp-libs
Name: system/management/hmp/hmp-libs
Summary: Oracle Hardware Management Pack - Libraries
Description: Oracle storage hardware device libraries
Category: System/Administration and Configuration
State: Installed
Publisher: mp-re
Version: 2.3.2.2
Build Release: 5.11
Branch: 1
Packaging Date: Fri May 29 22:22:20 2015
Size: 59.67 MB
FMRI: pkg://mp-re/system/management/hmp/hmp-libs@2.3.2.2,5.11-1:20150529T222220Z
#

Solaris 11.2

# pkg info -l hmp-libs
Name: system/library/hmp-libs
Summary: Oracle HMP Libraries
Description: Oracle Hardware Management Pack shared libraries
Category: System/Administration and Configuration
State: Installed
Publisher: solaris
Version: 2.3.2.0
Build Release: 5.11
Branch: 0.175.2.8.0.3.0
Packaging Date: February 21, 2015 12:46:03 AM
Size: 60.76 MB
FMRI: pkg://solaris/system/library/hmp-libs@2.3.2.0,5.11-0.175.2.8.0.3.0:20150221T004603Z
#

Cause

Root cause has been identified in usage of Oracle Hardware Management Pack 2.3.2.x (or earlier) which results in the Hardware Management Agent (hwagentd) issuing multiple device ADD requests to the Service Processor. This was not apparent until OHMP was installed by default with Solaris 11.2 SRU 8.5.

Solution

The final fix is integrated into Oracle HMP 2.3.3

Patch 21969585: Oracle HMP 2.3.3 for Oracle Solaris 10 (SPARC)
Patch 21969599: Oracle HMP 2.3.3 for Oracle Solaris 11
Solaris 11.2 SRU 14.5

The software can also be downloaded from My Oracle Support as a Patch.
See also "Download Firmware and Software Using My Oracle Support" in the Hardware Management Pack Installation Guide.

A workaround is also available to disable the Hardware Management Agent on the primary and alternate Oracle VM guest domains;

Solaris 10:
svcadm disable svc:/system/sp/management:default
svcs -l svc:/system/sp/management:default

Solaris 11:
svcadm disable svc:/application/management/hwmgmtd:default
svcs -l svc:/application/management/hwmgmtd:default

References

<NOTE:1672221.1> - Oracle Solaris 11.2 Support Repository Updates (SRU) Index
<BUG:20672065> - ILOM HANGS

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