You can use a GAD P-VOL or S-VOL as a Thin Image Advanced (TIA) P-VOL. Conversely, you can use a volume with the vClone Parent attribute or the vClone attribute (Thin Image Advanced function) as the P-VOL or the S-VOL of a GAD pair.
You can create up to 1,024 Thin Image Advanced pairs using a GAD P-VOL, and up to 1,024 Thin Image Advanced pairs using a GAD S-VOL.
Because the server recognizes the GAD pair as one volume, it sees the volume as paired with 2,048 TIA volumes.
Note:
- Pairs in a TIA consistency group and snapshot group must reside in the same storage system. Because of this, the TIA pairs that are associated with both the GAD P-VOL and S-VOL cannot be registered to the same consistency group or snapshot group.
- When you use GAD pair volumes to create a Thin Image Advanced pair, specify the physical LDEV ID, not the virtual LDEV ID.