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To delete a consistency group from an mcu, Asynchronous copy option, Figure 58 async option window – HP StorageWorks XP Remote Web Console Software User Manual

Page 108: 58 async option window, Asynchronous copy, Option

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108 Hitachi TrueCopy z/OS for HP XP12000/XP10000 and SVS 200 storage systems

The Delete CT Group command deletes the selected group from the current MCU. You cannot delete a

group that still has M-VOLs in the current MCU.

To delete a consistency group from an MCU:

1.

Connect to the MCU.

2.

From the Consistency Group tree, select a consistency group mode that includes the consistency group

you want to delete.

3.

From the Consistency Group list, select the consistency group(s) to delete. Make sure to select more than

one consistency group whose This CU column indicates MCU.

4.

Right-click to display the pop-up menu, click CT Group Operation, and then click Delete CT Group. The

list changes to the Consistency Group Settings Parameter list. If the Delete CT Group command is not

enabled, the selected group still contains M-VOLs in this MCU.

NOTE:

The options can be modified and/or canceled after you have set them. See ”

Modifying

parameters and omitting consistency groups

” on page 109.

5.

Click Apply in the TrueCopy main window to apply the deletion to the disk array.

Asynchronous copy option

Use the Async Option command to select the parameters for the TC390A copy operation. When the Async

Option command is selected, the Async Option window is displayed. Use the Async Option window to

specify the TC390A copy option parameters for the connected disk array. The async options apply to the

entire physical control unit, including all TC390 M-VOLs and R-VOLs behind the control unit. The async

options can be modified only when no TC390A pairs or groups exist in the connected CU (M-VOLs or

R-VOLs).

Figure 58

Async Option window

All the default settings indicate the current settings.
The CLPR(#) list specifies CLPR ID. The default setting is 00.
Use the Pending Update Data Rate (%) box to specify the TC390A (and XP Continuous Access

Asynchronous) sidefile threshold that is the maximum amount of cache that can be used for storing TC390

(and XP Continuous Access) Async recordsets (sidefiles). You can select any value between 30% and 70%

(10% increments) (see

Inflow control of recordsets

” on page 31). The current pending update data rate is

common to both TC390 and XP Continuous Access operations. The most recently entered value (on the

TrueCopy or XP Continuous Access Async Option window) will be applied to TC390A and XP Continuous

Access Asynchronous operations. When the amount of cache being used for TC390A and XP Continuous

Access Asynchronous recordsets reaches the specified threshold value, the MCU/RCU performs cache

inflow control as follows:

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