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Chapter 7 Using Extended Consistency Groups 7-5
Hitachi Universal Replicator for IBM /OS User’s Guide
– You cannot set the same serial number to DKC-1 through DKC-4.
• LDKC: Indicates the LDKC number of a storage system.
• Controller ID: Indicates the controller ID of a storage system.
Notes:
– The controller ID is unchangeable, if JNLG of the local DKC is used in
check box ON is selected.
– The controller ID for USP V is 5.
• Cmd. Dev.(LDKC, CU, LDEV): The text box on the left allows you to
specify the LDKC number of the remote command device. The drop-down
list on the center allows you to specify the CU number of the remote
command device. The drop-down list on the right allows you to specify the
LDEV number of the remote command device.
Note: When you register a journal group of the supervisor DKC, the LDKC,
the CU and LDEV numbers cannot be specified.
• JNLG: Displays journal groups.
There are two lists named JNLG in the Add JNL Group window. If you want
to register journal groups in an extended consistency group, you must
move the journal groups from the left list to the right list.
• ->Add: Allows you to move journal groups selected in the left JNLG list to
the right JNLG list.
• <-Cancel: Allows you to move journal groups selected in the right JNLG
list to the left JNLG list.
• Mirror ID: Allows you to specify a mirror ID.
• Num of JNLG: Displays the number of journal groups:
– Current: The number of journal groups already registered in the
storage system.
– Total in DKC: The number of journal groups in the storage system
after journal groups are registered or removed.
– Total in EXCTG: The number of journal groups in the extended
consistency group after journal groups are registered or removed.
• Set: Applies the settings in the window to the Preview list of the EXCTG
Operation window.
• Cancel: Cancels the settings.
Manipulating Data Volume Pairs in Extended Consistency
Groups
Business Continuity Manager allows you to split, restore, or release all data
volume pairs in the specified extended consistency group collectively.