HP XP P9500 Storage - Manual (Page 27)

Change Option window
To open the Change Option window, right-click the desired CLPR in the Compatible XRC option
list, and then select Change Option.
The following table describes the items in the Change Option window.
Description Item
Select the desired CLPR. CLPR list
Check this box to apply the settings to all CLPRs. Clear this box to apply the settings only
to the selected CLPR. The same setting is applied.
Select the desired threshold (SCP-SCI reporting threshold or level 2 threshold) of the
sidefiles of which the storage system performs an SCP (State Change Pending)-SCI (State
Change Interrupt) reporting to the host. Level 2 Threshold list
The level-2 threshold can be set from 30 percent to 70 percent in 10 percent increments.
The default level-2 threshold setting is 50 percent. The level-2 threshold setting for SCP-SCI
reporting applies to Concurrent Copy. When the level-2 threshold setting is changed,
all of these functions are affected.
To calculate the level-1 threshold, subtract 10 percent from the level-2 threshold, and
add 10 percent to the level-2 threshold to calculate the level-3 threshold.
Sets the IBM-compatibility mode for device blocking, which controls the amount of write
data according to the sidefile capacity. Block Option
•
Volume Level
Sets the IBM-compatible mode of the Device Block feature.
When the "Sleep"- "Wait" command is retried, the system monitors the I/O written
to the volume. When the amount of I/O write data exceeds the threshold for the
number of record sets per volume specified by SDM, the following settings are made:
When Volume Level is selected, Enable is set to Do not Block (Volume Level), Disable
for Level 1 is set to Sleep, and Disable for Level 2 three is set to Suspend.
• Cache Level
Disables the "Sleep"- "Wait" command retry according to the threshold for the number
of record sets per volume.
The storage system controls the amount of three levels of write data according to the
sidefile capacity. For details, see
“Controlling the amount of write data” (page 24) .
Change Option window 27