HP StorageWorks XP Remote Web Console Software User Manual

Page 135

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To cancel all operations, select all the operations in the preview list, right-click, and click
the Delete command or click Cancel.

To display error code, right-click the preview list, and click Error Detail. Error code is
displayed on the rightmost the preview list.

6.

To apply the settings, click Apply.

If an error occurs in the setting, an error code is displayed in the Error Code column in the
preview list. To display the error message, right-click on the list, display the pop-up menu and
click Error Detail. After you check the error message, click OK to close the error message. If
necessary, remove the cause of the error message.

Figure 48 System Option Dialog Box

The Maximum Initial Copy Activities setting specifies the number of concurrent initial copy and
resync operations. You can set a number from 1 to 512. The default setting is 64 volumes. TrueCopy
for Mainframe initial copy activities can impact the performance of the main site, depending on
the amount of I/O activity and the number of pairs being registered at the same time. If this value
is too large, pending processes in the remote site will increase and it may impact the remote I/O
response time to the update I/Os.

For example, if you set the maximum initial copy activities to 64 volumes and then add 65 TrueCopy
for Mainframe pairs at the same time, the MCU starts the first 64 pairs and will not start the 65th
pair until one of the first 64 pairs is synchronized (Duplex status). When you change the maximum
initial copy activities setting, the new setting applies to pairs created or resynchronized after the
setting was changed, not to existing pairs.

The Maximum Initial Copy Activities (CU) setting specifies whether the CU-by-CU setting of concurrent
initial copy and resync operations will be enabled or disabled. If it is enabled, you can specify
the CU-by-CU setting of concurrent initial copy operations, and if it is disable, you cannot specify
the setting.

The Path Blockade Watch (sec.) setting specifies the time for monitoring blockade in the paths. The
path blockade watch value must be from 2 to 45 seconds. The default setting is 40 seconds.

If you create a pair with the synchronous mode, and if the status of all paths becomes Monitoring
because of a path error, MIH may occur in the host. The time of the Path Blockade Watch must be
shortened than the setting time of MIH timer in the host.

The 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 2 to 100 seconds. The

Other Operations

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