Direct links to fixes
6.3.6.000-TIV-TSMRPT-AGENT-Linux
6.3.6.000-TIV-TSMRPT-AGENT-AIX
6.3.6.000-TIV-TSMRPT-AIX
6.3.6.000-TIV-TSMRPT-AGENT-Windows
6.3.6.000-TIV-TSMRPT-Linuxx86
6.3.6.000-TIV-TSMRPT-Linuxx86_64
6.3.6.000-TIV-TSMRPT-WindowsI32
6.3.6.000-TIV-TSMRPT-WindowsX64
6.3.6.000-TIV-TSMAC-WindowsX64
6.3.6.000-TIV-TSMAC-WindowsI32
6.3.6.000-TIV-TSMAC-SolarisSPARC
6.3.6.000-TIV-TSMAC-Linuxx86
6.3.6.000-TIV-TSMAC-Linuxs390x
6.3.6.000-TIV-TSMAC-AIX
6.3.6.000-TIV-TSMALL-SolarisSPARC
6.3.6.000-TIV-TSMALL-WindowsX64
6.3.6.000-TIV-TSMSTA-WindowsI32
6.3.6.000-TIV-TSMALL-HP-UX
6.3.6.000-TIV-TSMALL-Linuxppc64
6.3.6.000-TIV-TSMALL-AIX
6.3.6.000-TIV-TSMALL-Linuxs390x
6.3.6.000-TIV-TSMALL-Linuxx86_64
IBM Tivoli Storage Manager V6.3 Fix Pack 6 (6.3.6.000) Server Downloads
APAR status
Closed as duplicate of another APAR.
Error description
Certain tape operations performed against an external library may result in SAN device discovery being triggered. This behavior can occur when any of the following operations are performed against an external library: o tape dismounts o volume deletions o move drmedia (when a checkout occurs) o query drmedia When any combination of these events occur within a short amount of time this can result in the appearance of a hang condition as the NAV mutex is held by the NaDiscoverThread for the entire duration of the device discovery operation: Thread 33, Parent 1: NaDiscoverThread, Storage 162884, AllocCnt 414651 HighWaterAmt 214321 tid=a21, ptid=1, det=1, zomb=0, join=0, result=0, sess=0 Holding mutex NAV->mutex (0x1125a9ce8), acquired at nadiscvr.c(2311) Stack trace: 0x090000000012d654 __fd_poll 0x00000001003fe110 ReadResponseHeader 0x0000000100400750 psSendScsiInquiry 0x00000001003faeac GetIdentifyingData 0x00000001003f94f8 GetAllAdrOnSan 0x00000001003f21b4 DiscoverDevices 0x00000001003f161c naDiscoverDevices 0x00000001003f84c0 NaDiscoverThread 0x000000010000cae0 StartThread Other operations waiting to acquire this mutex will have to wait until the device discovery operations have completed. Tivoli Storage Manager Versions Affected: All versions/platforms Initial Impact: Low Additional Keywords: edt gresham elm acsls discovery sandiscovery nadiscoverthread nav release
Local fix
1. Increase the value for the SANREFRESHTIME parameter to allow the SAN device information to be cached, thereby eliminating the need for device discovery operations to be performed as frequently 2. Disable SANDISCOVERY, if necessary
Problem summary
Problem conclusion
Temporary fix
Comments
This APAR is a duplicate of IT08768
APAR Information
APAR number
IT08406
Reported component name
TSM SERVER
Reported component ID
5698ISMSV
Reported release
71A
Status
CLOSED DUB
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2015-04-17
Closed date
2015-05-28
Last modified date
2015-07-07
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Applicable component levels
Document Information
Modified date:
07 July 2015