Hitachi Command Suite 8 User Guide

HDT pool, click Add to Pool, and click Close. The Tier Configuration
table in Pool Summary shows the new tier configuration status for
each tier.
4. Click  Show Plan  and confirm that the information in the plan summary
is correct. If changes are required, click  Back.
5. (Optional) Update the task name and provide a description.
6. (Optional) Expand  Schedule to specify the task schedule. You can
schedule the task to run immediately or later. The default setting is  Now.
If scheduled for  Now, select...

Related concepts
•
About virtualizing storage capacity  on page 160
Related tasks
•
Expanding DP pools  on page 169
Modifying DP pool settings After setting up a DP pool, you can modify DP pool settings.
Procedure 1. On the  Resources  tab, select  DP Pools under the target storage
system.
2. From the list of DP pools, select the pool you want to modify and click
Edit Pool .
3. Modify the settings as appropriate and click  Submit.
4. On the  Tasks & Alerts  tab, confirm that all tasks are completed.
5....

Procedure1. On the  Resources  tab, select  Storage Systems .
2. Expand the tree, select the target storage system, and select  DP Pools.
3. From the list of pools, select one or more target DP pools to delete, and
click  Delete Pools .
4. In the  Delete Pool  dialog box, confirm that the information matches the
DP pools to be deleted. Optionally, update the task name and provide a description.
5. Click  Submit .
The delete DP pools process begins.
6. You can check the progress and the result of the...

Related concepts
•
About virtualizing storage capacity  on page 160
Related tasks
•
Expanding DP pools  on page 169
Reclaiming zero pages Reclaiming unused zero pages for a DP pool releases unused capacity.
Procedure 1. On the  Resources  tab, select Storage Systems  in the navigation tree.
2. Expand the tree for the target storage system that includes the
appropriate DP pool, and select the DP pool in  DP Pools.
3. On the  DP Vols  tab, select one or more volumes and click  Reclaim Zero
Pages .
4. Click...

Procedure1. On the  Resources  tab, expand the  Storage Systems  tree, right-click
the target storage system, and then select  Other Functions.
2. Click  Actions > Other Functions > Data Retention  to open the Data
Retention  window.
3. Click 
 to change to modify mode.
4. Select an LDKC number in the  LDKC list, select a group that the CU
belongs to in the  CU Group list, and then click a CU in the tree.
5. Right-click a volume for which you want to change access attributes. You
can select multiple...

allows you to optimize data placement, improve volume performance, andreduce costs through more effective use of your resources.
HDT settings that can be specified using HCS include:
• Monitoring HDT pools and relocating data Monitoring and data relocation can be configured to run automatically by
specifying a time or interval in advance, or you can manually monitor and relocate data as required. For a VSP G1000, a data relocation speed can
be set. For example, using a slower relocation speed will reduce...

When HDT volumes are created or allocated, specify whether toprioritize relocation of the data of the target HDT volumes.
• Editing a tier rank for an external HDT pool volume When an external volume is included in an HDT pool volume that is one of
the volumes making up an HDT pool, you can define the external LDEV tier rank (high, medium, or low) according to the performance.
A registered Tiered Storage Manager license enables the following:
• Evaluating and analyzing the operation status of HDT pools...

•Creating a data placement profile for HDT volumes on page 183
•
Updating a data placement profile for HDT volumes  on page 184
•
Editing a data placement profile for HDT volumes  on page 185
•
Applying a data placement profile for HDT volumes  on page 186
•
Scheduling data placement profiles for HDT volumes  on page 187
•
Editing an external LDEV tiering rank for an HDT pool  on page 187
Related references •
Notes on data placement profiles for HDT volumes  on page 182
Manually starting or stopping the...

To stop relocation of an HDT pool, confirm:• The HDT pool setting for Tier Management is Manual or Custom
Procedure 1. From the tree view in the  Resources tab, select  Storage Systems  (or
use the  Mobility  tab).
2. Expand the tree and select  DP Pools under the target storage system.
3. Select one or more HDT pools and click either the  Start Relocation or
Stop Relocation  button.
4. Set the desired items and execute the task.
5. View the list of tasks to make sure that all tasks have completed.
6....

Editing tier relocation for HDT volumesThere are conditions where it is useful to disable tier relocation of volumes to
prevent unnecessary data movement. For example, to preferentially perform
tier relocation of volumes whose I/O activity varies greatly, and suppress tier
relocation of other volumes.
Prerequisites
A Tiered Storage Manager license must be registered.
Procedure 1. Click the  Mobility tab, and select  Logical Groups  in the navigation
pane.
Logical Groups  can contain both  Public Logical...