Pool capacity consumed by metadata

When you use the capacity saving function, the following capacities are consumed for the pool capacity:

  • Used capacity of the pool consumed by user data
  • Used capacity of the pool consumed by garbage data
  • Used capacity of the pool consumed by metadata

Metadata for the compression function. When the compression function is enabled, 2% of the total used capacity of the compression-enabled DP-VOLs is consumed as the metadata for the compression function. The capacity of the metadata for the compression function is added to the used capacity of the pool. To view the used capacity of the pool, see Pool Capacity (Used/Total) in the Pools window. To view the system data capacity for a pool, see the item of System Data in the Pools window. The system data capacity indicates the total capacity of meta data and garbage data.

Metadata for the deduplication function. When the deduplication function is enabled, 3% of the total used capacity of the deduplication-enabled DP-VOLs is consumed as the metadata for the deduplication function. To view the capacity of the metadata for the deduplication function, see the capacity of the deduplication system data volumes (finger print). The capacity of the metadata of the deduplication function is added to the used capacity of the pool. To view the used capacity of the pool, see Pool Capacity (Used/Total) in the Pools window. To view the system data capacity for a pool, see System Data in the Pools window. The system data capacity indicates the total capacity of meta data and garbage data.