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

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Path Watch Time: Allows you to 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.
NOTE: 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 will not be 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 will be suspended in 5 minutes after a path
gets blocked, and the restore journal group will be suspended in 60 minutes after a path gets
blocked.
NOTE: If you want a mirror to split (suspended) immediately after a path gets blocked, ask
HP technical support to set system option mode 448 to ON and set system option mode 449
to OFF.
Table 40 System Option Modes
Description Mode
ON: If the SVP detects a blocked path, the SVP assumes that an error occurred, and then
immediately splits (suspends) the mirror. 448
OFF: If the SVP detects a blocked path and the path does not recover within the specified
period of time, the SVP assumes that an error occurred, and then splits (suspends) the mirror.
NOTE: The mode 448 setting takes effect only when mode 449 is set to OFF.
ON: The SVP does not detect blocked paths. 449
OFF: The SVP detects blocked paths and monitors the time until the mirrors get split (suspended).
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Forward Path Watch Time: Allows you to 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.
CAUTION: This option cannot be specified in the secondary site.
◦ Select Yes in the primary site of the Universal Replicator for Mainframe pair for the delta
resync operation because you need to set path watch time in the secondary site to perform
the delta resync operation.
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Use of Cache: Allows you to specify whether to store journal data in the restore journal group
into the cache.
◦ Use: Journal data will be stored into the cache.
170 Configuring Journal Groups