Cache capacity without Dynamic Provisioning, Dynamic Provisioning for Mainframe, Dynamic Tiering, Dynamic Tiering for Mainframe, active flash, active flash for mainframe, Cache Residency Manager, and Compatible XRC

The following products require more cache capacity to run:

  • Dynamic Provisioning
  • Dynamic Tiering
  • active flash
  • Universal Volume Manager
The recommended cache capacity for storage systems that do not use these products is lower.

The following table lists the recommended cache capacity for storage systems that do not use the products listed above.

VSP G350, VSP G370, VSP G700, VSP G900 , and VSP F350, VSP F370, VSP F700, VSP F900 models

Internal/external VOL for a CLPR (total capacity) 1

Recommended cache capacity for a CLPR2

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 GB

240 TB or more

56 GB

360 TB or more

64 GB

600 TB or more

72 GB

Notes:

  1. If you are calculating the total capacity of internal/external volumes, note the following for each volume capacity:
    • Internal volume: For RAID 1, 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 the resulting amount.
    • External volume: Add the total capacity of the parity group.
  2. If the recommended cache capacity exceeds the maximum capacity, install the maximum capacity.