HP StorageWorks XP Remote Web Console Software - Manual (Page 170)

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Copy Pace: Specify the pace (speed) for an initial copy activity for one volume. The default is
Low.
◦ Low: The speed of the initial copy activity is slower than Medium and High.
◦ Medium: The speed of the initial copy activity is faster than Low and slower than High.
To specify Medium, ensure that the amount of I/Os (that is, write requests from hosts to
primary data volumes) is 10 MB/s or less per one parity group. If it exceeds 10 MB/s,
data volume pairs may become split (suspended).
◦ High: The speed of the initial copy activity is faster than Low and Medium.
To specify High, ensure that update I/Os (that is, write requests from hosts to primary
data volumes) will not occur. If update I/Os occur, data volume pairs may become split
(suspended).
The secondary storage system administrator cannot specify this option.
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Unit of Path Watch Time: Specify the unit of path watch time. You can specify one of the
following: minute, hour, or day.
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Path Watch Time: Specify the interval from when a path gets blocked to when a mirror gets
split (suspended).
This value must be within the range of 1 to 59 minutes, 1 to 23 hours, or 1 to 30 days. You
can specify a numeric value in Path Watch Time.
Make sure that the same interval is set to both the master and restore journal groups in the
same mirror, unless otherwise required. If the interval differs between the master and restore
journal groups, these journal groups do not suspended simultaneously. For example, if the
interval for the master journal group is 5 minutes and the interval for the restore journal group
is 60 minutes, the master journal group suspends in 5 minutes after a path gets blocked, and
the restore journal group suspends in 60 minutes after a path gets blocked.
NOTE: If you want a mirror to get split (suspended) immediately after a path gets blocked,
ask HP technical support to set the system option mode 448 to ON and set the system option
mode 449 to OFF. For detailed information about the modes 448 and 449, see
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Forward Path Watch Time: Specify whether to forward the Path Watch Time value of the
master journal group to the restore journal group. If the Path Watch Time value is forwarded
from the master journal group to the restore journal group, the two journal groups will have
the same Path Watch Time value.
◦ Yes: The Path Watch Time value will be forwarded to the restore journal group.
◦ No: The Path Watch Time value will not be forwarded to the restore journal group. No
is the default.
◦ Blank: The current setting of Forward Path Watch Time will remain unchanged.
Cautions:
◦ This option cannot be specified in the secondary site.
◦ Select Yes in the primary site of the XP Continuous Access Journal pair for the delta resync
operation if you need to set the path watch time in the secondary site to perform the delta
resync operation.
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Use of Cache: Specify whether to store journal data in the restore journal group into the cache.
Use: Journal data will be stored in 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 in the cache.
◦ Blank: The current setting of Use of Cache will remain unchanged.
170 Using Journal Groups