Dataset

Dataset

Volume level FlashCopy

Dataset level FlashCopy

Figure 6-3 Data Set FlashCopy

Multiple Relationship FlashCopy

Multiple Relationship FlashCopy allows a source to have FlashCopy relationships with multiple targets simultaneously. A source volume or extent can be FlashCopied to up to 12 target volumes or target extents, as illustrated in Figure 6-4.

Source

Volume

1

Target Volume

1

2

12

Maximum 12 Target volumes from 1 Source volume

Figure 6-4 Multiple Relationship FlashCopy

Note: If a FlashCopy source volume has more than one target, that source volume can be involved only in a single incremental FlashCopy relationship.

94DS6000 Series: Concepts and Architecture

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IBM DS6000 Series manual Multiple Relationship FlashCopy, Data Set FlashCopy