Actions on the Volumes by LSS page

Volume actions

Expand

Increase the capacity of one or more volumes to accommodate your growing storage requirements. Volumes can remain connected to the host during expansion.

Redistribute

Redistribute the capacity of one or more volumes in the current pool. You can redistribute the capacity to change the allocation method of the volume or to redistribute the capacity across new arrays that were added to the pool that contains the volume.

Migrate

Migrate a set of volumes from one pool to another pool within the same node. You might need to migrate a volume because the drives that are currently hosting the volumes might require maintenance. Migration can also reduce costs by eliminating excess drives.

Note: Before you migrate, ensure that the target pool has sufficient space.

To begin the migration process, click Start and then select the target pool in the Migrate Volume window. You can also manage the migration process by clicking actions to Pause, Resume, or Cancel the migration process.

Safeguarded

You can manage safeguarded virtual backup capacity with the following options:

Configure Capacity

Opens the Configure Safeguarded Capacity window to create safeguarded virtual backup capacity for safeguarded backups of the volume. For more information about determining a backup capacity multiplier, see Configuring safeguarded virtual capacity.

Expand Capacity

Opens the Expand Safeguarded Backup Capacity window to increase safeguarded virtual backup capacity for safeguarded backups of the volume. For more information about determining a backup capacity multiplier, see Configuring safeguarded virtual capacity.

Delete Capacity

Delete safeguarded virtual backup capacity for safeguarded backups.

Migrate Capacity

Migrate safeguarded virtual backup capacity from one pool to another pool within the same node. The schedule for safeguarded backups will be maintained at the new location.

To begin the migration process, click Start and then select the target pool in the Migrate Safeguarded Backup Capacity window. You can also manage the migration process by using actions to Pause, Resume, or Cancel the migration.

Assign to Drive Class

Assign the volume to an Easy Tier® drive class, or specify a tier that the volume should not use. This action opens the Assign Volume to Drive Class window, which you can use to select the drive class. If you select a drive class that is different from the drive class that is in use by the volume, Easy Tier moves the volume to the new drive class. The following options are available, depending on the drive classes that are in the pool:

Flash Tier 0

Assign the volume to the high performance flash tier.

Flash Tier 1

Assign the volume to the first tier of high capacity flash drives.

Flash Tier 2

Assign the volume to the second tier of high capacity flash drives.

Unassign from Drive Class

Unassign the volume from an Easy Tier drive class tier and allow Easy Tier to manage the volume automatically again.

Manage Aliases

Opens the Aliases by volume window to create, delete, and view aliases for a volume.

Rename

Rename one or more volumes as a way of reorganizing or redefining the purpose of your volumes, as needs change.

Map to Host or Cluster

Map one or more volumes to a host or hosts within a cluster by using the Map Volumes to Hosts or Clusters window.

When you map a volume to a host, you can choose the LUN that the volume gets. If the host is assigned to a cluster, the mapping is private.

When you map a volume to a cluster, the volume is mapped to all hosts in the cluster and the mapping is public. You can choose the LUN that the volume gets.

Delete

Delete one or more volumes that you no longer need to improve your storage organization. Before deleting volumes, remove or backup all of the data that is stored on the volumes. By checking Force deletion, you force deletion of the volumes even when allocated to a host system or a copy services relationship. A Force deletion does not do checks of the volume group, path group, or copy services. By not checking Force deletion, the system does checks of the volume group, path group, or copy services.

Reinitialize

Reinitialize a thin provisioned volume. Reinitializing a volume frees up storage, but also results in data loss.

Host Mappings

View the host mappings for a volume to see all the hosts that a single volume is assigned to without having to individually check each host.

Properties

View the properties of a volume, such as the state and capacity.

LSS actions

Create Volumes

Create one or more volumes across a pool or a pool pair, by specifying the name prefix, quantity of volumes, capacity, and capacity units (depending on the volume type, fixed block, or CKD). For CKD volumes, you must also specify the LSS range.

Note: LSS is synonymous with logical control unit (LCU) and subsystem identification (SSID).

You can also assign the new volume to a host or host cluster.

Preset configurations for FB and CKD storage types simplify the process of creating volumes, or you can use the custom mode to control the settings. In preset mode, the storage system automatically distributes the volumes between the two selected pools, one on each node to help balance the processing workload.

Modify SSID

Modify the SSID of a single LSS. The SSID is an identifier of an LSS within a z/OS® environment.

Delete

Delete one or more LSSs that you no longer need.

Properties

View the properties of an LSS, such as the type and address group.