Capacity limit metrics

Monitor how much capacity is available for storing data when you set a capacity limit for your storage systems and pools.

Capacity Limit (%)

As an Administrator, you can set a Capacity Limit (%) for block storage systems, or pools, or both. In this scenario, you want to keep 20% of your usable capacity in reserve so you set the capacity limit to 80%.


Set Capacity Limit

To see the GiB or percentage value for the capacity limit, right-click any column heading on the Block Storage Systems or the Pools pages and add them.

To monitor how much capacity is available in relation to the capacity limit that you set, the used and available capacity values are adjusted and are shown in the following columns:
  • Adjusted Used Capacity (%)
  • Capacity-to-Limit (GiB)

To see the values for Adjusted Used Capacity (%), right-click any column heading on the Block Storage Systems page or Pools page and add it.

Adjusted Used Capacity (%)

To know how much capacity can be used without exceeding the capacity limit, monitor the value for Adjusted Used Capacity (%).


Adjusted Used Capacity

The formula for calculating Adjusted Used Capacity (%) is (Used Capacity in GiB/Capacity Limit in GiB )*100. Using the values that are shown in the illustration above, the value is (40 GiB/80 GiB )* 100 or 50%. So, in this scenario, you can use 30% or 40 GiB of the usable capacity of the resource before you reach the capacity limit.

If the used capacity exceeds the capacity limit, the value for Adjusted Used Capacity (%) is over 100%.

Capacity-to-Limit (GiB)

Use the value for Capacity-to-Limit (GiB) to monitor how much available capacity is left before the capacity limit is reached.


Capacity-to-limit

The formula for calculating Capacity-to-Limit (GiB) is (Capacity Limit in GiB - Used Capacity in GiB). Using the values that are shown in the illustration above, the value is (80 GiB - 40 GiB) or 40 GiB.

If the capacity limit is exceeded, a negative value is shown for Capacity-to-Limit (GiB).