The following table shows the maximum number of relationships between Hitachi Compatible FlashCopy® and IBM® FlashCopy®.
Feature |
IBM® FlashCopy® |
Hitachi Compatible FlashCopy® |
|---|---|---|
Number of multiple relationships |
Up to 12 relationships can be created per extent. A track is the smallest unit. |
Up to 16 relationships can be created per extent. A track is the smallest unit. |
Maximum number of relationships that can be created per volume |
50,099 relationships (for 3390-3) 65,534 relationships (other than 3390-3) |
65,534 relationships (volume of 10,017 cylinders or more) 20,479 relationships (volume of less than 10,017 cylinders) |
|
Note: For relationship management reasons, you should not create more than 4000
relationships per volume.
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