Ume122 – HP XP Business Copy Software User Manual

Page 122

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122 ShadowImage for the XP1024/XP128/XP12000/XP10000/SVS 200

NOTE:

The above mentioned system configuration differs from the system configuration that is used when

IBM FlashCopy Version 2 and PPRC are used in conjunction.

The following table shows performing the Reverse Restore when you share the FlashCopy® Mirror Version

2 S-VOL and the volume of a TCz pair.

Table 54

Whether Reverse Restore Can be Performed When FlashCopy® Mirror Version 2 S-VOL is Used

as TCz Volume

Using a volume both as a FlashCopy® Mirror Version 2 T-VOL and as a TCz M VOL - When you intend to

use a volume both as a FlashCopy Mirror Version 2 T-VOL and as a TCz M VOL, use a volume of any

combination shown in

Table 45

. Also, before you create a FlashCopy Mirror Version 2 pair, you need to

create a TCz pair. Firstly, turn the created TCz pair to the Suspend status, and then create a FlashCopy

Mirror Version 2 pair so that the FlashCopy Mirror Version 2 T-VOL will be the TCz M VOL. As described in

the following table, whether you can or cannot share the FlashCopy Mirror Version 2 T-VOL and the TCz

M-VOL depends on the status of the TCz pair. As described in the following table, whether you can or

cannot share the FlashCopy Mirror Version 2 T-VOL and the TrueCopy for z/OS M-VOL depends on the

status of the TrueCopy for z/OS pair.

Table 55

Whether FlashCopy® Mirror Version 2 T-VOL Can be Used as TrueCopy for z/OS

When a TCz pair is not in the Suspend status, you cannot specify its M-VOL as a FlashCopy Mirror

Version 2 T-VOL to create a FlashCopy Mirror Version 2 pair. Similarly, when you delete the FlashCopy

Mirror Version 2 pair whose T-VOL is a TCz M VOL, the TCz pair has to be in the Suspend status. In

addition, while a volume is used both as a FlashCopy Mirror Version 2 T-VOL and as a TCz M VOL, you

cannot resynchronize the TCz pair.
The following table shows performing the Reverse Restore when you share the FlashCopy® Mirror Version

2 T-VOL and the volume of a TCz pair.

Shared TCz Pair Volume

Status of TCz Pair

Duplex

Pending duplex

Suspend

TCz Synchronous

M-VOL

NO

NO

OK*

R-VOL

NO

NO

NO

TCzA

M-VOL

NO

NO

OK*

R-VOL

NO

NO

NO

You can perform Reverse Restore when you specify the following options;

DFSMSdss : TCTOPPRCPRIMARY

TSO : TGTPPRIM(YES)

ICKDSF : TGTOKASPPRCPRIM(YES)

Shared TrueCopy for z/OS Pair

Volume

Status of TrueCopy for z/OS Pair

Duplex

Pending duplex

Suspend

TrueCopy for

z/OS

Synchronous

M-VOL

No

No

OK

TrueCopy for

z/OS

Asynchronous

M-VOL

No

No

OK

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