IBM DS8000 - Manual (Page 142)

120 DS8000 Series: Concepts and Architecture
Figure 7-3 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 7-4.
Figure 7-4 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.
D ataset
Dataset
V olum e level FlashCopy D ataset level FlashCopy
Source
Volume Target
Volume
1
1’
2’
12’
Maximum 12 Target volumes
from 1 Source volume