Split Mirrors window

Use this window to split pairs.

For instructions, in the Help Contents tab, click: UR pair operations Splitting mirrors

Selected Mirrors table

Item

Description

Journal ID

Journal identifier.

Mirror ID

Mirror’s identifier

Attribute

Mirror’s attribute: Master, Restore, or Initial.

  • Master is displayed when the P-VOL is paired (initial copy performed).
  • Restore is displayed when the S-VOL is paired (initial copy performed).
  • Initial is displayed when neither data volume is paired yet (initial copy not performed).

Status

Mirror’s status.

Remote Storage System

Displays the following information about pair volumes in the Remote Storage System.

  • Model/Serial Number: Storage system model name and serial number.
  • Journal ID: Journal identifier.

Path Group ID

Path group identifier.

Number of Data VOLs

Number of volumes associated with the journal.

With the delta resync configuration, the number of data volumes registered to the journal of the mirrors not for delta resync is displayed. The number of volumes registered to the journal of the delta resync mirrors (whose status is Hold, Holding, or Hold(Failure)) is not displayed.

Data Capacity

Total capacity of all the data volumes.

With the delta resync configuration, the total capacity of the data volumes registered to the journal of the mirrors not for delta resync is displayed. The total capacity of the data volumes registered to the journal of the delta resync mirrors (whose status is Hold, Holding, or Hold(Failure)) is not displayed.

Remote Command Device

LDEV number of the remote command device if it is assigned to the mirror.

  • The column is blank if the remote command device is not assigned to the mirror.
  • A hyphen (-) indicates the remote command device cannot be assigned to the mirror.

CTG ID

Consistency group identifier.

CTG Utilization

Whether the consistency group is shared by multiple storage systems.

  • Single: The consistency group consists of a single pair of primary and secondary storage systems.
  • Multi: The consistency group consists of multiple storage systems.

Settings

Item

Description

Secondary Volume Write

Whether data can be written to the S-VOL while the pair is split.

  • Enable: Data can be written to the S-VOL. Available only when the selected mirror’s Attribute is Master. If Restore, Disable is used automatically.
  • Disable: Data cannot be written to the S-VOL (default).

Split Mode

Whether update data is written to S-VOLs in the mirror before the split operation.

  • Flush: Data is copied to S-VOLs.
  • Purge: Data is not copied to S-VOLs until resynchronization.