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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 1 Migrating Volumes in XP24000 Disk Arrays When the Disk Processor Usage Rate is High

Migrating Volumes in an XP24000 Disk ArrayDisk ProcessorDisk AdapterCluster

Migrate volumes from parity groups with the following

IDs to another parity group:

1-X

3-X

11-X

DKP40-1AU

DKP41-1AU

DKP42-1AU

DKP43-1AU

DKA-1AU1

Migrate volumes from parity groups with the following

IDs to another parity group:

2-X

4-X

12-X

DKP50-1BU

DKP51-1BU

DKP52-1BU

DKP53-1BU

DKA-1BU1

Migrate volumes from parity groups with the following

IDs to another parity group:

5-X

13–X

DKP44-1AL

DKP45-1AL

DKP46-1AL

DKP47-1AL

DKA-AL1

Migrate volumes from parity groups with the following

IDs to another parity group:

6-X

14-X

DKP54-1BL

DKP55-1BL

DKP56-1BL

DKP57-1BL

DKA-BL1

Migrate volumes from parity groups with the following

IDs to another parity group:

7-X

15-X

DKP60-1LU

DKP61-1LU

DKP62-1LU

DKP63-1LU

DKA-1LU1

Migrate volumes from parity groups with the following

IDs to another parity group:

8-X

16-X

DKP70-1KU

DKP71-1KU

DKP72-1KU

DKP73-1KU

DKA-1KU1

Migrate volumes from parity groups with the following

IDs to another parity group:

9-X

17-X

DKP64-1LL

DKP65-1LL

DKP66-1LL

DKP67-1LL

DKA-1LL1

XP24000/XP20000 Performance Monitor User Guide 19

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