A fix is available
APAR status
Closed as program error.
Error description
In a shared external storage environment (such as a multiple VIOS environment), disk errors may be logged on the partner node while booting a system from migration media or a migration image. In the case of SAN attached storage, the partner node will log SC_DISK_ERR4 errors. Additionally, in a Virtual I/O environment, the errors may cause a VIO client using the disk to unexpectedly crash. While scanning the system for candidate rootvg disks to migrate, the blvset command is opening the disk with a reserve when reading off the OS information.
Local fix
Disable connections to external shared disks before booting the system from migration media.
Problem summary
An AIX installation or migration will cause SCSI reservation errors on other systems in a shared-disk (SAN) environment.
Problem conclusion
blvset should use openx() with the SC_NO_RESERVE flag to open disks devices.
Temporary fix
Comments
APAR Information
APAR number
IZ82676
Reported component name
AIX 5.3
Reported component ID
5765G0300
Reported release
530
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2010-08-11
Closed date
2010-08-11
Last modified date
2013-03-28
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX 5.3
Fixed component ID
5765G0300
Applicable component levels
R530 PSY U837890
UP10/09/20 I 1000
PTF to Fileset Mapping
U837890 bos.rte.bosinst 5.3.10.4
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Document Information
Modified date:
28 March 2013