3PAR InForm® OS 2.2.4 CLI Administrator's Manual (320-200113 Rev A, March 2009)

13.14
Task Types
3PAR InForm OS CLI Administrator’s Manual InForm OS Version 2.2.4
13.3.7 tunevv_rollback
The tune_vv_rollback task type is used to track
tunealdvv -rollback operations performed with the 3PAR System Tuner tunealdvv -
rollback
command. The tunealdvv -rollback command enables users to reverse any
changes that resulted from a previously interrupted
tunealdvv operation. Use of this feature
requires a 3PAR System Tuner license.
The following examples shows how to start, cancel, and then rollback a
tunealdvv operation
on virtual volume
testvol:
Note that the
tune_vv_rollback task is a new task and takes a new task ID number.
You cannot start a
tune_vv_rollback task for a tunealdvv operation that completed
successfully. The following error message appears:
For tune_vv_restart tasks, there are three phases:
 Phase 1: performing the actual region moves.
 Phase 2: deleting the information stored in Phase 1 of the corresponding tune_vv task.
The number of steps in the phase is equal to the number of regions being moved.
For more information on 3PAR System Tuner and the
tunealdvv command see Chapter 15,
Using Dynamic Optimization, and the InForm OS Command Line Interface Reference.
cli% tunealdvv -t r5 -ha mag testvol
Task 3 started.
cli% canceltask 1
Are you sure you want to cancel task 3?
select q=quit y=yes n=no: y
cli% tunealdvv -rollback testvol
Task 4 started.
cli% tunealdvv -rollback testvol2
Are you sure you want to rollback the tune process for VV 'testvol2' ?
select y=yes n=no: y
Command failed
error: No restart state for VV testvol2.