Hitachi Command Suite 8 User Guide

From the Actions list in the application pane, select  Element
Manager . Refer to the documentation for the native management tool
for your storage system.
3. In CLPR  on the  Migrate CLPR Resources  window, select the CLPR
number to which the resource is assigned.
4. In CU , select the CU to which the resource is assigned.
5. In Available Parity Groups  or Available Virtual Volumes , select the
resource that you want to migrate, and then click  Set>. This adds the
selected resource to the  CLPR table....

4.Edit the CLPR settings as follows. The CLPR number cannot be changed.
a. In  CLPR Name , edit the CLPR name as needed. You can use up to 16
alphanumeric characters but you cannot specify CLPR names that are
already reserved.
b. In  Total Cache Size , edit the CLPR cache capacity as needed. The
minimum cache size is 8 GB, and the size can be changed in
increments of 4 GB. The maximum available capacity (by subtracting the total usage capacity of other CLPRs from the total capacity of the
storage system)...

Procedure1. Cancel the Cache Residency Manager bind mode or priority mode setting.
2. Edit the settings of an existing CLPR to change the cache capacity of the
CLPR.
3. Set the bind mode or priority mode again.
Result
The cache capacity is adjusted.
Related tasks
•
Creating a CLPR  on page 318
•
Editing the settings of an existing CLPR  on page 321
Deleting a CLPR You can only delete CLPRs that you created. CLPR0 cannot be deleted.
Caution: The delete CLPR operation deletes all resources and data in the...

Data mobilityAn administrator can obtain information required to see the operating status
of storage resources and optimize data placement.
About data mobility The Mobility tab provides information required to see the operating status of
storage resources and optimize data placement.
To efficiently use a storage resource, use the Mobility tab to optimize the data arrangement. In the Mobility tab, information used to determine whether the
data arrangement is appropriate is collectively displayed. In...

When periodically monitoring logical groups or DP pools during routine work,check the ranking reports in the Mobility tab so you can efficiently find logical groups or DP pools that have problems in their operational status.
The Mobility tab can be used to check the total capacity and usage rate for
each logical group, DP pool, or each volume in a logical group or DP pool. As with HDT pools, you can also check which volumes are using the largest
proportions of each hardware tier. In addition, the...

Reports for logical groups displayed in the Mobility tabSeveral reports are available on a logical group basis for monitoringperformance related items such as response time and unused capacity.
You can display one of the following ranking reports for a logical group in the
Mobility tab by selecting a top folder of the Public or Private folder, and a top-
level folder for each user group under the Private Logical Group folder:
• Bottom 10: Logical Groups with High Response Time
Checks for logical groups...

Check on a regular basis for DP pools with a high capacity usage rate todetermine DP pools that need pool expansion or data migration.
• Top 10: Pools with the Highest Subscription
Check on a regular basis for DP pools with a high reservation rate to
determine DP pools that need pool expansion or data migration on a regular basis.
• Top 10: Tiers with the Highest Performance Utilization
Check on a regular basis for hardware tier configurations with high ratio ofactual I/O operations to the calculated...

capacity. You can change the display period of the trend chart as needed,
or save the trend chart as a report after exporting it to a CSV file. If the
display period of the trend chart is seven days or more, the chart displays
the average of the obtained information for each day.
• Capacity Utilization
Check the total capacity and used capacity of the HDT pools for each
hardware tier. Based on this information, you can check whether the HDT
pool has the necessary capacity. You need to perform capacity...

Procedure1. From the tree view of the  Mobility tab, select  Logical Groups .
2. From  Logical Groups , select either Public Logical Groups  or Private
Logical Groups , and in the logical group ranking, check for logical
groups that are responding late, have a small unused capacity, or have a
large used capacity for each drive type (for example: FMD, SSD, SAS, or
SATA).
3. If the capacity or performance of the entire logical group is not
satisfactory, click the link of the logical group name to check the...

• To check if the usage capacity of the HDP pool is appropriate, from theActions  menu, select  Show Trend Chart , and then check the IOPS
and usage capacity of each pool.
• To check if the configuration and performance of each hardware tier in the HDT pool is appropriate, from the  Actions menu (or from the
Capacity & Performance Utilization  link), select Show Trend
Chart , and then check the capacity and performance of each
hardware tier. To save the contents of the Trend Chart as a report, click...