HP 3PAR InForm OS 3.1.1 Command Line Interface Reference

Specifies the number of identical virtual volumes to tune using an integer from 1 through 999. For
Thinly Provisioned Virtual Volumes, this must be an integer between 1 and 64. If not specified,
one virtual volume is tuned. If the -cnt option is specified, then the subcommands, restart and
rollback are not permitted.
SPECIFIERS
<VV_name>
Specifies the name of the existing virtual volume.
RESTRICTIONS
This command requires a Dynamic Optimization license. Contact your local 3PAR representative
for information.
EXAMPLES
In the following example, the LDs used for user space are moved to CPG cpg_sn1.0_p for VV
nf_st_tp_22.0:
cli% tunevv usr_cpg cpg_sn1.0_p nf_st_tp_22.0
Task 999 started
In the following example, the specified VVs will be re-tuned within the same CPG if the layout of
the VV can be improved (e.g., spread to new nodes, cages or magazines):
cli% tunevv nf_st_tp_22.0 nf_st_tp_22.1
NOTES
When canceling a tunevv command task, the canceltask command can return before a
cancellation is completed. Therefore, resources reserved for the task might not be immediately
available. This can prevent actions such as restarting the canceled tunevv command task. Scripts
should use the waittask command in order to ensure orderly completion of the tunevv command
cancellation before taking other actions. See Section (page 614) for details about using the
waittask command.
When new capacity has been added to a system, entering the command with no subcommand
will start a tune which will try to improve the layout of the specified VVs to use the newly added
space. Both USR and SNP space will be tuned.
tunevv 603