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6-14 Chapter 6 Configuring Journal Groups
Hitachi Universal Replicator for IBM /OS User’s Guide
– A slash (/), the controller ID
This column is blank if the journal group does not belong to any extended
consistency group.
• JNL Volumes: Displays a list of registered journal volumes.
– Parity Group: indicates the parity group where a journal volume
belongs.
– LDKC:CU:LDEV: Indicates the LDKC number, the CU number and the
LDEV number of a journal volume.
– Capacity: Indicates the capacity of a journal volume. The unit is
cylinders if the volume is a mainframe volume. The unit is gigabytes if
the volume is an open-systems volume.
– Emulation: Indicates the emulation type of a journal volume.
– CLPR: Indicates the number and the name of the CLPR where the
journal volume belongs.
• Mirrors: Displays a list of mirrors.
– Mirror ID: indicates a mirror ID.
This column is blank if the attribute of the journal group is neither
Master nor Restore.
– Attribute: indicates the attribute of a mirror ID.
Initial
A mirror in initial status. No data volumes are registered in the journal groups of local storage
system.
Master A mirror to whom primary data volumes of local storage system are registered.
Restore A mirror to whom secondary data volumes of local storage system are registered.
– Status: Indicates the status of a journal group (or a mirror) in the local
storage system.
Initial
A journal group in initial status.
Journal volumes are registered in this journal group, but no data volumes (primary data
volumes nor secondary data volumes) are registered in this journal group.
When you create a URz volume pair, data volumes will be registered in a journal group. The
status of the journal group will change to Active.
Active
Either of the following:
•
Initial copy is in progress. The primary data volume and the secondary data
volume are not synchronized.
• Initial copy is finished. The primary data volume and the secondary data volume
are synchronized.
Note: If a journal group is in Active status, some of the data volume pairs in the
journal group might be split. If this happens, the word Warning is displayed. To
restore such data volume pairs, use the Pair Operation window.
HaltAccept
An operation for splitting the mirror has been started. The status of the mirror will
immediately change to Halting.
Note: HaltAccept can indicate status of restore journal groups, but cannot indicate status of
master journal groups.