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Data is copied in each Compatible FlashCopy relationship, but not in the Cnt Ac-S Z pairs.If the

Withdraw command is issued to release the Compatible FlashCopy relationship, P-VOL and S-VOL

in Cnt Ac-S Z#2 becomes inconsistent.

Figure 18 The flow of Preserve Mirror Compatible FlashCopy function (COPY mode) after the copy

processsing finished

Each Compatible FlashCopy relationship is released after the copying process is completed.

The following table shows the Preserve Mirror Compatible FlashCopy functions that can be used

with other Compatible FlashCopy functions.

Other Compatible FlashCopy functions possible?Preserve Mirror Compatible FlashCopy Function

YesVolume copy

YesDataset copy

YesCOPY mode

YesNOCOPY mode

YesIncremental FlashCopy

YesUsing Consistency Groups for Dataset Copies

YesReverse Restore

YesFlashCopy to PPRC Primary

NoFast Reverse Restore

NoCompatible FlashCopy SE

Options required for the Preserve Mirror Compatible FlashCopy function (Compatible

FlashCopy only)

The following options are required when establishing a Compatible FlashCopy relationship using

the Preserve Mirror Compatible FlashCopy function:

• DFSMSdss: FCTOPPRCPRIMARY(PRESMIRREQ or PRESMIRRPREF)

• TSO: PRESERVEMIRROR(REQUIRED or PREFERRED)

• ICKDSF: PRESERVEMIRROR(REQUIRED or PREFERRED)

• ANTRQST Macro: PRESMIR(REQ or PREF)

24 About Compatible FlashCopy

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Hp XP7 Storage Bedienungsanleitung Seite 24