HP StorageWorks XP Remote Web Console Software User Manual

Page 125

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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. 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.

•

Delta resync Failure: Indicates the processing that would take place when delta resync operation
cannot be performed.

◦

Entire: Whole data in primary data volume will be copied to secondary data volume
when delta resync operation cannot be performed.

◦

None: No processing will take place when delta resync operation cannot be performed.
Therefore, the secondary data volume will not be updated.

•

Speed of Line: Indicates the line speed of data transfer. The unit is Mbps (megabits per second).

One of the following is displayed: 256, 100, or 10.

The recommended setting values are as follows:

◦

10 is recommended if the line speed is from 10 Mbps to 99 Mbps.

◦

100 is recommended if the line speed is from 100 Mbps to 255 Mbps.

◦

256 is recommended if the line speed is 256 Mbps and more.

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.

•

Timer Type: Indicates the type of clock used for consistency time.

System: The system clock of the mainframe host is used.

◦

◦

Local: The system clock is not used.

◦

None: The system clock of the mainframe host is used. The difference between System
and None is explained in

Timer Type Option

.

•

EXCTG, DKC/CTRLID: Displays the following information sequentially if the journal group
belongs to an extended consistency group:

◦

the extended consistency group number

◦

the serial number and the LDKC number (the LDKC number is enclosed by parentheses)

◦

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.

Displaying Detailed Information about a Journal Group

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