Timeline to run the DLPAR scripts

The AIX® Live Update notifications are run on both original and surrogate partitions.

The order of execution of the phases is as follows:

Original node	Surrogate node
`LVUP_CHECK Priority 1` If error occurs, `LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation` This script is invoked regardless of phase run.
...
`LVUP_CHECK Priority 10` If error occurs, `LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
`DR_CHECK`; Return code (RC) is checked. If error occurs, `DR_POST_ERROR LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
Alternate disk install	Boot the surrogate node
	`DR_CHECK`; RC is checked. If error occurs, `DR_POST_ERROR Terminate Live Update operation`
	`LVUP_CHECK Priority 10` If error occurs, `DR_POST_ERROR LVUP_ERROR Priority 1 ... LVUP_ERROR Priority 10 Terminate Live Update operation`
	...
	`LVUP_CHECK Priority 1` If error occurs, `DR_POST_ERROR LVUP_ERROR Priority 1 ... LVUP_ERROR Priority 10 Terminate Live Update operation`
If error occurs on the surrogate node, `DR_POST_ERROR LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
`LVUP_PRE (applications) Priority 1` If error occurs, `LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
...
`LVUP_PRE (applications) Priority 10` If error occurs, `LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
`DR_PRE (applications)`; RC is not checked. This `DR_PRE` script is run for the processes that are being migrated.
Mirror volume group
	`DR_PRE (applications)`; RC is not checked. This `DR_PRE` script is run for the running base processes.
	`LVUP_PRE (application) Priority 10` This `DR_PRE` script is not run for the base process, but it is available for the migrated processes. If error occurs, `LVUP_ERROR Priority 1 ... LVUP_ERROR Priority 10 Terminate Live Update operation`
	...
	`LVUP_PRE (application) Priority 1` If error occurs, `LVUP_ERROR Priority 1 ... LVUP_ERROR Priority 10 Terminate Live Update operation`
If error occurs on the surrogate node, `DR_POST_ERROR LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
Applications are frozen, network is blocked
`LVUP_PRE (Kernel) Priority 1` If error occurs, `LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
...
`LVUP_PRE (Kernel) Priority 10` If error occurs, `LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
`DR_PRE (Kernel)`; RC is checked. If error occurs, `DR_POST_ERROR LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation` The `DR_POST_ERROR` script is run once for both the kernel and application `DR_PRE` scripts.
	If error occurs on the original node, `DR_POST_ERROR LVUP_ERROR Priority 1 ... LVUP_ERROR Priority 10 Terminate Live Update operation` The `DR_POST_ERROR` script is run once for both the kernel and application `DR_PRE` scripts.
Split volume group
	Import volume group
	`DR_PRE (Kernel)`; RC is checked. If error occurs, `DR_POST_ERROR`
	`LVUP_PRE (Kernel) Priority 10` If error occurs, `DR_POST_ERROR LVUP_ERROR Priority 1 ... LVUP_ERROR Priority 10 Terminate Live Update operation`
	...
	`LVUP_PRE (Kernel) Priority 1` If error occurs, `DR_POST_ERROR LVUP_ERROR Priority 1 ... LVUP_ERROR Priority 10 Terminate Live Update operation`
If error occurs on the surrogate node, `DR_POST_ERROR LVUP_ERROR Priority 10 ... LVUP_ERROR Priority 1 Terminate Live Update operation`
	Migrated applications are unfrozen, network is unblocked
	Point of no return
`DR_POST` script is run; RC is not checked. (For cleanup of files if the Live Update migration is not acceptable to the customer.)	`DR_POST` script is run; RC is not checked. (For migrated applications.)
`LVUP_POST (application) Priority 1`	`LVUP_POST (application) Priority 10`
`...`	`...`
`LVUP_POST (application) Priority 10`	`LVUP_POST (application) Priority 1`
	`Original LPAR deleted, Surrogate UUID updated`
	`LVUP_COMPLETE (application) Priority 10`
	`...`
	`LVUP_COMPLETE (application) Priority 1`