Pool metrics

The Pool metrics dashboard provides information to ensure efficient data consumption, and how to enable or disable compression if less effective.

To view the pool list, from the OpenShift Web Console:
  1. Go to Storage > Data Foundation.
  2. In the Status card of the Overview tab, click Storage System, select the storage system and then click BlockPools.

When you click on a pool name, the following cards on each Pool dashboard is displayed along with the metrics based on deployment mode (internal or external):

Details card
The Details card shows the following:
  • Pool Name
  • Volume type
  • Replicas
Status card

This card shows whether the pool is up and running without any errors or is experiencing some issues.

Mirroring card

When the mirroring option is enabled, this card shows the mirroring status, image health, and last checked time-stamp. The mirroring metrics are displayed when cluster level mirroring is enabled. The metrics help to prevent disaster recovery failures and notify of any discrepancies so that the data is kept intact.

The mirroring card shows high-level information such as:

  • Mirroring state as either enabled or disabled for the particular pool.

  • Status of all images under the pool as replicating successfully or not.

  • Percentage of images that are replicating and not replicating.

Inventory card

The Inventory card shows the number of storage classes and Persistent Volume Claims.

Compression card

This card shows the compression status as enabled or disabled as the case may be. It also displays the storage efficiency details as follows:

  • Compression eligibility that indicates what portion of written compression-eligible data is compressible (per ceph parameters)

  • Compression ratio of compression-eligible data

  • Compression savings provides the total savings (including replicas) of compression-eligible data

    For information on how to enable or disable compression for an existing pool, see Updating an existing pool.

Raw Capacity card

This card shows the total raw storage capacity which includes replication, on the cluster.

  • Used legend indicates storage capacity used by the pool
  • Available legend indicates the available raw storage capacity on the cluster
Performance card

In this card, you can view the usage of I/O operations and throughput demand per application or account. The graph indicates the average latency or bandwidth across the instances.