HP XP Continuous Access Software User Manual
Page 116
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Inflow Control: Indicates whether inflow of update I/Os to the journal volume is restricted (in
other words, whether to slow the delay response to hosts).
◦
Yes: Inflow is restricted.
◦
No: Inflow is not restricted.
NOTE:
Inflow Control displays nothing if the journal group is a restore journal group.
•
Data Overflow Watch (sec): Time (in seconds) for monitoring whether metadata and journal
data are full.
NOTE:
Data Overflow Watch displays nothing when one of the following conditions is
satisfied:
◦
Inflow Control is No.
◦
The journal group is a restore journal group.
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Copy Pace: Pace for an initial copy activity for one volume: 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.
•
Use of Cache: Indicates whether journal data is stored in the restore journal group in cache.
Use: Journal data is stored in cache.
◦
NOTE:
When there is insufficient space in cache, journal data is also stored in the
journal volume.
◦
Not Use: Journal data is not stored in cache.
CAUTION:
This setting does not take effect on master journal groups. However, if you
use the XP RAID Manager
horctakeover
command to change a master journal group
to a restore journal group, this setting takes affect 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: Processing that takes place when the delta resync operation cannot be
performed.
◦
Entire: All data in the primary data volume is copied to the secondary data volume when
the delta resync operation cannot be performed.
◦
None: No processing takes place when the delta resync operation cannot be performed.
Therefore, the secondary data volume is not updated.
•
Speed of Line: Line speed of the data transfer. The unit is Mbps (megabits per second).
One of the following appears: 256, 100, or 10.
The recommended setting values are as follows:
116
Using journal groups