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4-4 Chapter 4 Using the Universal Replicator for z/OS GUI
Hitachi Universal Replicator for IBM /OS User’s Guide
– Restoring mirrors
• Upper-right list: If a master journal group or a restore journal group is
selected in the tree, the upper-right list displays a list of mirrors. A mirror
is a combination of a master journal group and a restore journal group.
If another journal group is selected in the tree, the upper-list displays
information about the selected journal group.
One row in this list represents one mirror (or one journal group).
– JNLG (LDKC): Indicates the number of a journal group in the local
storage system and the LDKC number is enclosed in the following
parentheses.
– Attribute: Indicates the attribute of a journal group 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.
Master
A master journal group.
Journal volumes and primary data volumes are registered in this journal group.
Restore
A restore journal group.
Journal volumes and secondary data volumes are registered in this journal group.
Blank
Neither journal volumes nor data volumes are registered in this journal group.
Status: Indicates the status of a journal group 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.
HaltAcce
pt
An operation for splitting the mirror has been started. The status of the journal group will immediately
change to Halting.
Note: HaltAccept can indicate status of restore journal groups, but cannot indicate status of master journal
groups.
Halting
An operation for splitting or deleting the mirror is in progress. The primary data volume and the
secondary data volume are not synchronized.
When you split a mirror, the status will change in the following order: Halting, Halt, Stopping, and finally Stop.
When you delete a mirror, the status will change in the following order: Halting, Halt, Stopping, Stop, and
finally Initial.
Halt
An operation for splitting or deleting the mirror is in progress. The primary data volume and the
secondary data volume are not synchronized.
Stopping
An operation for splitting or deleting the mirror is in progress. The primary data volume and the
secondary data volume are not synchronized.