Flashcopy In Combination With Other Copy Services; Flashcopy And Metro Mirror - IBM System storage DS6000 Series Redbook

occurred on the source or on the target will stay as they were at the time when the FlashCopy
was established.
persistent
If the
withdrawn explicitly.

6.4 FlashCopy in combination with other Copy Services

Volume-based FlashCopy can be used in various combinations with other Copy Services,
whereas the most suitable will depend on the characteristics of the environment and the
requirements.
Note: The scenarios discussed in the present section do not apply to data set FlashCopy.

6.4.1 FlashCopy and Metro Mirror

source
primary
Metro
Mirror
Figure 6-7 FlashCopy and Metro Mirror
As illustrated in Figure 6-7, the following combinations are supported at the primary Metro
Mirror site:
A FlashCopy
The order of creation is optional.
A FlashCopy
you wish to use a FlashCopy target volume as a Metro Mirror primary, be aware of the
following considerations:
– The recommended order is to first establish the Metro Mirror, and then create a
FlashCopy to that Metro Mirror primary using the -tgtpprc parameter if using DS CLI,
or TGTPPRIM(YES) if using TSO, or PPRCPRIM(YES) if using ICKDSF, or
FCTOPPRCPrimary if using DFSMSdss.
The Metro Mirror secondary will not be in a fully consistent state until the Metro Mirror
enters the full duplex state.
FlashCopy option was specified, the FlashCopy relationship must be
FlashCopy
target
primary
source volume
can become a Metro Mirror
target volume
can become a Metro Mirror
Metro
Mirror
secondary
source target
FlashCopy
primary volume
primary volume
Chapter 6. FlashCopy overview
and vice versa.
and vice versa. If
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