You must calculate the number of Thin Image pairs you can create.
When you create Thin Image pairs for a P-VOL for the first time, the number of pairs that you can create in a storage system depends on several variables.
- The number of Thin Image pairs that you can create based on the number of available pair tables.
- The snapshot estimated manageable capacity.
- The number of cache management devices that you must make available.
The smallest of the three calculations is the maximum number of Thin Image pairs that you can create in the storage system.
When you create Thin Image pairs again, you only need to know the number of pair tables to calculate the number of pairs that you can create. You do not need to know the snapshot estimated manageable capacity or the number of cache management devices.
If you have multiple P-VOLs, calculate the number of Thin Image pairs that you can create for each P-VOL in the storage system.