HP StorageWorks XP Remote Web Console Software - Manual (Page 165)

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JNL Volumes: Indicates the number of journal volumes registered in the journal group.
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JNL Capacity: Indicates the total capacity of all the registered journal volumes. The unit is
cylinders for mainframe volumes. The unit is gigabytes for open-systems volumes.
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Data Volumes: Indicates the number of data volumes associated with the journal group. When
one journal group uses multiple mirror IDs, Data Volumes indicates the number of the data
volumes in the journal group whose mirror ID is not Hold, Holding, or Hold(Failure).
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Data Capacity: Indicates the total capacity of all the data volumes. The capacity is expressed
in cylinders and gigabytes. When one journal group uses multiple mirror IDs, Data Capacity
indicates the total capacity of the data volumes in the journal group whose mirror ID is not
Hold, Holding, or Hold(Failure).
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Inflow Control: The function to reduce the number of I/Os which the storage system receives
by delaying the responses to the host I/Os. This function can restrain the data overflow from
the journal volume.
Inflow Control indicates whether to restrict inflow of update I/Os from a host to the journal
volume (in other words, whether to slow the delay response to hosts).
Yes indicates inflow will be restricted. No indicates inflow will not be restricted. The default
setting is Yes, so that it prevents the Universal Replicator for Mainframe pair from suspending
due to the journal data overflowing.
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Data Overflow Watch: Indicates the time (in seconds) for monitoring whether metadata and
journal data area is full.
The Data Overflow Watch displays nothing when Inflow Control is not enabled.
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Copy Pace: Indicates the pace for an initial copy activity for one volume.
One of the following settings is displayed: High, Medium, or Low.
NOTE:
◦ By default, the pace for an initial copy activity is Low.
◦ Copy Pace displays nothing if the journal group is a restore journal group.
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Use of Cache: Indicates whether to store journal data in the restore journal group into the
cache.
◦ Use: Journal data will be stored into the cache.
NOTE: When there is insufficient space in the cache, journal data will also be stored
into the journal volume.
◦ Not Use: Journal data will not be stored into the cache.
CAUTION: This setting does not take effect on master journal groups. However, if the Business
Continuity Manager YKRESYNC REVERSE command is used to change a master journal group
into a restore journal group, this setting will take effect on the journal group. If you set Use,
this setting only takes effect on the journal volumes of RAID-5 or RAID-6 that are in the journal
group. For external volumes, non-RAID-5 journal volumes, and non-RAID-6 journal volumes,
Use works the same as Not Use.
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Delta resync Failure: Indicates the processing that will take place when the delta resync
operations are initiated but cannot be performed.
◦ Entire: Whole data in the primary data volume will be copied to the secondary data
volume when the delta resync operation cannot be performed.
◦ None: No processing will take place when the delta resync operation cannot be
performed. Therefore, the secondary data volume will not be updated.
Displaying Detailed Information about a Journal Group 165