Dell Solutions Enabler 10.0.0 TimeFinder/Clone CLI User Guide

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Cascaded TimeFinder/Clone (Clone off Clone): A - B

The following image shows the relationship between devices for a Clone off Clone operation in which source device A is paired with target device B and an additional session uses device B as a source paired with target device C.

Figure 1. Clone off Clone device relationship: A -> B

Limitations

Mixed thick and thin devices are not supported. All devices in a cascaded session must be thick or thin.
Cascaded sessions cannot exceed two hops.

In the following table:

Pair state refers to the current state of the B-C pair.
Operation refers to the intended control operation on the A-B pair.
Y indicates that the operation is allowable for that state.

Table 1. Clone off Clone operations: A - B
TimeFinder/Clone A -> B Operation:	TimeFinder/Clone B -> C Pair state:
TimeFinder/Clone A -> B Operation:								²	²				¹
Create	Y		Y	Y ³	Y		Y			Y
Recreate	Y		Y ³	Y ³	Y		Y			Y					Y
Activate	Y		Y	Y	Y		Y			Y
Full Establish	Y		Y	Y	Y		Y			Y
Incremental Establish	Y		Y	Y	Y		Y			Y
Set Mode Copy ^,	Y		Y	Y	Y	Y	Y	Y	Y	Y
Set Mode Nocopy ⁵^,^,⁶^,	Y		Y	Y	Y	Y	Y	Y	Y	Y
Set Mode Precopy⁴^,⁶	Y				Y		Y			Y
Full Restore ⁴	Y		Y	Y	Y	Y	Y	Y	Y	Y		Y
Incremental Restore ⁴	Y		Y	Y	Y	Y	Y	Y	Y			Y
Split	Y		Y	Y	Y	Y	Y	Y	Y	Y		Y
Terminate	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y