• If you select two or three tiers, the system creates Tiered pools.
Table 3 Tier definitions
Tier Disk type
Platinum SSD, FMD, and FMD DC2
Gold SAS 15 k
Silver SAS 10 k
Bronze SAS 7.2 k
7. Click a selected tier to view the available storage capacity and select a
capacity size.
8. Click Tier Management to see the disk type, capacity, and speed of
each pool category.
9. Review the high and low pool utilization thresholds and the subscription
limit. The thresholds will serve as the Warning and Critical thresholds for
monitoring capacity. Adjust the thresholds if needed. Select the
Subscription Limit % checkbox to set the limit to Unlimited.
Note: Subscription Limit % is not applicable to Snap pools.
10. Click Submit.
Result
A job is started to allocate the storage capacity and create the pool.
Next steps
• Check the status of the pool creation job by clicking Jobs.
• Create a volume.
How Storage Advisor calculates pool sizes for the basic method of pool creation
Storage Advisor incorporates best practices to calculate the best pool sizes
based on the media available in the storage system. When the basic pool
creation option is used, pool size is determined as follows:
• Storage Advisor identifies all the parity groups of the same disk type, disk
capacity, disk speed, RAID type and layout and determines the available
capacity of their usable LDEVs. Only parity groups in the Available and
Quick Formatting states are eligible for pool creating using the basic
method.
• Storage Advisor then uses combinations of these parity groups where four
or more parity groups of the Bronze, Silver, or Gold tiers can be added
together, or there is a parity group of the Platinum tier, to compute various
possible pool sizes that can be created for the combination of disk type,
disk capacity, disk speed, RAID type and layout.
Configuring the storage system 81
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
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