APAR status
Closed as documentation error.
Error description
After a viosupgrade with option "-F" to copy the users and groups from VIOS 3.1 install, CPU usage on the VIOS could be high and caused by SSP and/or CM DB initialization looping on : ... ERROR: Failed to get group id for 'db_users' ...
Local fix
$ oem_setup_env # stopsrc -s vio_daemon # mkgroup -'A' id='202' users='vpgadmin,padmin' db_users # startsrc -s vio_daemon -a "-d 4" # kill -1 vio_daemon's PID
Problem summary
recommended NOT to use -F forcecopy with -g for system specificing usage of -g and -F forcecopy flags for viosupgrade did not describe the dangers of using these flags to overwrite default vios users required for the vios to function properly. https://community.ibm.com/community/user/power/blogs/ruchira-cha wla/2023/12/08/vios-41-migration-demystified-expert-tips-and-ins i The blog has been updated to include the note: Note: It is files like /etc/group.The -g flag without the -F forcecopy option copies the files to the location: /home/padmin/backup_files directory in the new rootvg volume group. /
Problem conclusion
Updated blog. -g and -F forceopy should not be used to force overwrite /etc/group when migrating VIOS as new users/groups might be introduced that are required for VIOS to function and should not be lost. Instead, just use -g, and manually merge the copy of /etc/group from backup_files after migration.
Temporary fix
Comments
APAR Information
APAR number
IJ49629
Reported component name
VIRTUAL I/O SER
Reported component ID
5765G3400
Reported release
410
Status
CLOSED DOC
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2024-01-03
Closed date
2024-01-03
Last modified date
2024-01-03
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
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SUNSET","label":"PRODUCT REMOVED"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"410","Line of Business":{"code":"LOB57","label":"Power"}}]
Document Information
Modified date:
15 February 2024