Investigating the capacity of tiered storage

Review the capacity that is assigned to tiered storage to see whether your system needs more storage space or whether you can re-tier storage to satisfy the capacity demands for tiered storage. View the space usage trends at the current growth rate for each tier and the projected depletion date of storage space.

Add the pools in your storage environment to the tiers that best meet the performance requirements of your storage data.

You can view the total capacity by tier and the capacity that is consumed by the pools that are not tiered. You can also view information about recent storage growth for each tier, including the weekly and average storage growth, and the date when the storage space of the tier is expected to run out.

1. Click Groups > Tiers.
2. Review the information that is shown about the distribution of capacity across each tier.
3. Optional: To place pools on lower or higher tiers, complete these steps:
   1. Click the number in the Pools column.
   2. Select the pools that you want to re-tier.
   3. Right-click the pools, click Set Tier, and click the tier level.
4. Optional: To assign untiered pools to tiers, click Untiered Pools.

If the storage space for tier 1 pools is running out, you can down-tier the volumes in the tier-1 pools to lower tiers. Alternatively, you can add more storage to meet the requirements of your tier-1 storage data.