Recommended Cache capacity without Dynamic Provisioning, Dynamic Tiering, or active flash

The Dynamic Provisioning, Dynamic Tiering, and active flash products require more cache capacity to run. The recommended cache capacity for storage systems that do not use the products is lower.

The following table lists the recommended cache capacity for storage systems that do not use Dynamic Provisioning, Dynamic Tiering, and active flash.


Internal/external VOL for a CLPR (Total capacity)¹	Recommended cache capacity for a CLPR
Less than 4 TB	12 GB
4 TB or more	16 GB
16 TB or more	24 GB
48 TB or more	32 GB
96 TB or more	40 GB
160 TB or more	48 GB²
240 TB or more	56 GB²
360 TB or more	64 GB²
600 TB or more	72 GB²
Notes: If you are calculating the total capacity of internal/external volumes, note the following for each volume capacity: Internal volume: For RAID1, add the half of total parity group capacity. For RAID 5/6, subtract the parity disk capacity from the total parity group capacity and add that amount. External volume: Add the total capacity of the parity group. 40 GB for VSP G200