Cache capacity without Dynamic Provisioning or Dynamic Provisioning for Mainframe

Virtual Partition Manager User Guide for VSP One Block 85

Version
10.5.x
File Size
100 KB
Audience
anonymous
Part Number
MK-26VSP1B038-01
ft:lastEdition
2026-03-06
The following products require more cache capacity to run:
  • Dynamic Provisioning
  • Dynamic Provisioning for Mainframe
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.

Internal and external VOL for a CLPR1 (total capacity)

Number of CBX pairs

Recommended cache capacity for a CLPR2

Less than 4 TB

1

12 GB

2

28 GB

3

44 GB

4 TB or more

1

16 GB

2

28 GB

3

44 GB

16 TB or more

1

24 GB

2

28 GB

3

44 GB

48 TB or more

1

32 GB

2

32 GB

3

44 GB

96 TB or more

1

40 GB

2

40 GB

3

44 GB

160 TB or more

1

48 GB

2

48 GB

3

48 GB

240 TB or more

1

56 GB

2

56 GB

3

56 GB

360 TB or more

1

64 GB

2

64 GB

3

64 GB

600 TB or more

1

72 GB

2

72 GB

3

72 GB

Notes:

  1. If you are calculating the total capacity of internal and 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.