HP 3PAR StoreServ 7450 4-node HP 3PAR Command Line Interface Administrator& - Page 136

tune_sys, CLI command requires the HP 3PAR Dynamic Optimization Software license.

Page 136 highlights

Command failed error: No restart state for VV testvol2. For tune_vv_rollback tasks, there are two phases: CAUTION: Rollback operations should not be performed on TPVVs. • 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 System Tuner and the tunevv command see "Performance Tuning" (page 173), and the HP 3PAR Command Line Interface Reference. For more information about the tunevv command, see "Performance Tuning" (page 173). NOTE: The tunevv CLI command requires the HP 3PAR Dynamic Optimization Software license. tune_sys The tune_sys task type is used to track operations performed with the tunesys command. The tune_sys task has three phases: • Phase 1-Analyze the system, detect any virtual volume capacity imbalance between nodes, and rebalance the virtual volumes. • Phase 2-Detect any chunklet imbalance between physical disks associated with the same node and rebalance the chunklets. • Phase 3-Analyze the system and perform a consistency check on LDs to verify they match the characteristics of any CPG to which the LD belongs. Any LDs that do not match are modified to match the characteristics of the CPG. The tune_sys task output displays information about the tuning process including: • Summary of tunesys command parameters. • Physical disk analysis. • Internode balance analysis. • Intranode balance analysis. For more information about the tunesys command, see "Performance Tuning" (page 173). NOTE: A dirty disk is a disk with chunklets that are determined to be out of balance during the analysis phase. A clean disk is a disk with balanced chunklets. The tunesys command waits for chunklet cleaning between tuning operations in order to maximize the amount of space available for the next tuning operation. tune_sd The tune_sd task type is used to track the movement of the LDs used for the volume's snapshot space to the specified CPG. Changing the layout of a virtual volume with the tunevv commands requires the HP 3PAR Dynamic Optimization Software license. For tune_sd tasks, there are three phases: • Phase 1-Storing away region move information for future restarts, rollbacks, or both. • Phase 2-Performing the actual region moves. • Phase 3-Deleting the information stored in Phase 1. 136 Managing Tasks

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Command failed
error: No restart state for VV testvol2.
For
tune_vv_rollback
tasks, there are two phases:
CAUTION:
Rollback operations should not be performed on TPVVs.
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 System Tuner and the
tunevv
command see
“Performance
Tuning” (page 173)
, and the
HP 3PAR Command Line Interface Reference
.
For more information about the
tunevv
command, see
“Performance Tuning” (page 173)
.
NOTE:
The
tunevv
CLI command requires the HP 3PAR Dynamic Optimization Software license.
tune_sys
The
tune_sys
task type is used to track operations performed with the
tunesys
command.
The
tune_sys
task has three phases:
Phase 1—Analyze the system, detect any virtual volume capacity imbalance between nodes,
and rebalance the virtual volumes.
Phase 2—Detect any chunklet imbalance between physical disks associated with the same
node and rebalance the chunklets.
Phase 3—Analyze the system and perform a consistency check on LDs to verify they match
the characteristics of any CPG to which the LD belongs. Any LDs that do not match are modified
to match the characteristics of the CPG.
The
tune_sys
task output displays information about the tuning process including:
Summary of
tunesys
command parameters.
Physical disk analysis.
Internode balance analysis.
Intranode balance analysis.
For more information about the
tunesys
command, see
“Performance Tuning” (page 173)
.
NOTE:
A dirty disk is a disk with chunklets that are determined to be out of balance during the
analysis phase. A clean disk is a disk with balanced chunklets.
The
tunesys
command waits for chunklet cleaning between tuning operations in order to maximize
the amount of space available for the next tuning operation.
tune_sd
The
tune_sd
task type is used to track the movement of the LDs used for the volume’s snapshot
space to the specified CPG. Changing the layout of a virtual volume with the
tunevv
commands
requires the HP 3PAR Dynamic Optimization Software license.
For
tune_sd
tasks, there are three phases:
Phase 1—Storing away region move information for future restarts, rollbacks, or both.
Phase 2—Performing the actual region moves.
Phase 3—Deleting the information stored in Phase 1.
136
Managing Tasks