The upper limit of Tier pools managed by the Automated Storage Tiering is as follows.
Also, "total capacity of Tier pools" represents logical capacity of Tier pools.
The upper limit of total value of total capacity and maximum number of Tier pools creatable per device is equal to the maximum capacity and maximum number of Flexible Tier pools for the ETERNUS Disk storage system used.
For details, refer to the manual for the ETERNUS Disk storage system used.
It is 6 PB regardless of the number of managed storage devices.
The value 2 PB is set by default, but it can be expanded up to 6 PB.
Memory capacity must be added to the install target server in accordance with this total value. Add the memory capacity shown in the following table to the memory capacity listed in "2.2.5.2 Required Memory for Operation".
Total Value of Total Capacity of Tier Pools | Memory Capacity to Be Added |
|---|---|
1 PB or more, but less than 2 PB | 0.5 GB |
2 PB or more, but less than 3 PB | 1.1 GB |
3 PB or more, but less than 4 PB | 1.7 GB |
4 PB or more, but less than 5 PB | 2.3 GB |
5 PB or more | 2.9 GB |
When expanding the total value, you must customize the Automated Storage Tiering configuration file and expand the maximum memory capacity used for Automated Storage Tiering. Refer to "Appendix K Customizing Automated Storage Tiering Configuration File" for the procedure to customize the Automated Storage Tiering configuration file.
