Changing Subsystem Settings; Option Settings List For The Subsystem And The Pop-Up Menu - HP StorageWorks XP12000 User Manual

• Reset button: Clears specified settings.

Changing subsystem settings

Use the Other Operation tab to change subsystem settings.
Viewing subsystem settings
1. In the Continuous Access XP main pane, click Other Operation. The Other Operation pane displays
the Tree.
2. Click a subsystem from the Tree. The Preset List displays subsystem settings.
• Activity: Number of volumes in concurrent initial copy operations. It can be between 1
and 128.
• Path Watch: Time for monitoring blockade in the paths (0 to 45 seconds).
• Path SIM Watch: Time for monitoring SIMs reported when paths are blocked (1 to 100
seconds).
Figure 27 Option Settings List for the subsystem and the pop-up menu
3. Right-click an item in the list, and select System Option. Current settings appear (see
• Maximum Initial Copy Activities: Number of concurrent initial copy operations: 1 to 128
volumes. The default setting is 64 volumes. Continuous Access XP initial copy activities
can impact performance of the main subsystem, depending on amount of I/O activity and
number of pairs being registered at one time. The maximum initial copy activities setting
of 64 volumes limits the impact of initial copy activities on subsystem performance. For
example, if you set the maximum initial copy activities to 64 volumes and add 65 Continuous
Access XP pairs at one time, the MCU starts the first 64 pairs, but does not start the 65th
pair until one of the first four pairs is synchronized (Duplex status). When you change the
maximum initial copy activities setting, the new setting applies to pairs created after the
setting was changed, not to existing pairs.
• Path Blockade Watch (sec.): Time to monitor the blockade in paths on the MCU side. The
path blockade watch (sec.) setting specifies the time for monitoring blockade in the paths.
The path blockade watch value must be from 0 to 45 seconds. The default is 40 seconds.
• Path Blockade SIM Watch (sec.) setting specifies the time for monitoring SIMs that are
reported when paths are blocked. The path blockade SIM watch value must be from 1 to
Figure
Continuous Access XP user guide
28).
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