How to leave a system dump during reboot in aix?
HMC command line:
chsystate -m managedSystemName -r lpar -n lparName -o dumprestart
or
chsystate -m managedSystemName -r lpar -n lparName -o dumprestart --immed=hung
HMC GUI mode
Systems Management->Servers -> Managed
system -> Target LPAR -> task button -> operations -> restart ->
dump option --> click ok
LPAR using
padmin command on VIO server
chsysstate
-r lpar -o dumprestart --id PartitionID