Hp XP P9500 Storage Bedienungsanleitung PDF herunterladen (Seite 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.

DescriptionItem

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

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Hp XP P9500 Storage Bedienungsanleitung Seite 27