HP 3PAR StoreServ 7400 2-node Administrator's Manual

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

HP 3PAR StoreServ 7400 2-node Specifications

General

Brand	HP
Model	3PAR StoreServ 7400 2-node
Category	Storage
Language	English