About Performance Manager Options 2-7
Hitachi Universal Storage Platform V/VM Hitachi Performance Manager User’s Guide
The information in the table does not apply to the USP VM storage system
because USP VM has only one pair of DKA. If you are using USP VM and
you want to know usage rates of DKPs, check the usage rate of each parity
group . For details on how to view usage statistics about disk adapters and
disk processors, see Viewing Usage Statistics on Disk Processors.
2. Check the
usage rate of each parity group to find parity groups whose
usage rate is lower than the parity groups that you want to migrate. It is
recommended you migrate volumes from higher-usage parity groups to
lower-usage parity groups.
Table 2-1 Migrating Volumes in USP V Storage Systems When Disk
Processor Usage Rate is High
Cluster Disk Adapter Disk Processor Migrating Volumes in USP V Storage System
1 DKA1AU DKP40-1AU
DKP41-1AU
DKP42-1AU
DKP43-1AU
Migrate volumes from parity groups with the following
IDs to another parity group:
1-X
3-X
11-X
1 DKA-1BU DKP50-1BU
DKP51-1BU
DKP52-1BU
DKP53-1BU
Migrate volumes from parity groups with the following
IDs to another parity group:
2-X
4-X
12-X
1 DKA-AL DKP44-1AL
DKP45-1AL
DKP46-1AL
DKP47-1AL
Migrate volumes from parity groups with the following
IDs to another parity group:
5-X
13-X
1 DKA-BL DKP54-1BL
DKP55-1BL
DKP56-1BL
DKP57-1BL
Migrate volumes from parity groups with the following
IDs to another parity group:
6-X
14-X
1 DKA-1LU DKP60-1LU
DKP61-1LU
DKP62-1LU
DKP63-1LU
Migrate volumes from parity groups with the following
IDs to another parity group:
7-X
15-X
1 DKA-1KU DKP70-1KU
DKP71-1KU
DKP72-1KU
DKP73-1KU
Migrate volumes from parity groups with the following
IDs to another parity group:
8-X
16-X
1 DKA-1LL DKP64-1LL
DKP65-1LL
DKP66-1LL
DKP67-1LL
Migrate volumes from parity groups with the following
IDs to another parity group:
9-X
17-X
