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Monitor cluster and storage unit utilization on ASA r2 storage systems

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Use ONTAP System Manager to monitor your storage utilization to ensure you have the storage capacity you need to serve current and future workloads.

Monitor cluster utilization

Regularly monitor the amount of storage consumed by your cluster to ensure that, if needed, you are prepared to expand the cluster capacity before running out of space.

Steps

  1. In System Manager, select Dashboard.

  2. Under Capacity, view the amount of physical used space and the amount of available space on your cluster.

    The data reduction ratio represents the amount of space saved through storage efficiency.

What's next?

If your cluster is running low on space or if it doesn't have the capacity to meet a future demand, you should plan to add new drives to your ASA r2 system to increase your storage capacity.

Monitor storage availability zone utilization

Each HA pair in an ASA r2 system uses a common pool of storage called a storage availability zone. The storage availability zone has access to all available disks in the storage system and is visible to both nodes in the HA pair.

If you have 4 or more nodes in your cluster, you can view the amount of space used by the storage availability zone for each HA pair. This metric is not available for 2-node clusters.

Steps

  1. In System Manager, select Cluster; then select Overview.

    A summary of the storage availability zone utilization is displayed for each HA pair in the cluster.

  2. If you want more detailed metrics, select a specific storage availability.

    Under Overview, the capacity of the storage availability zone, the amount of used space, and the data reduction ratio is displayed.

    Under Storage units a list of all the storage units in the storage availability zone is displayed.

What's next?

If your storage availability zone is running low on space, you should plan to move storage units to another storage availability zone to balance the storage utilization across the cluster.

Monitor storage unit utilization

Monitor the amount of storage consumed by a storage unit so that you can proactively increase the size of the storage unit based on your business needs.

Steps

  1. In System Manager, select Storage.

  2. Select the storage unit you want to monitor; then select Overview.

  3. Under Storage, view the following:

    • Size of your storage unit

    • Amount of used space

    • Data reduction ratio

      The data reduction ratio represents the amount of space saved through storage efficiency

    • Snapshot used

      Snapshot used represents the amount of storage used by snapshots.

What's next?

If your storage unit is nearing capacity, you should modify the storage unit to increase its size.