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  1. Home
  3. NetBackup™ Snapshot Manager for Data Center Administrator's Guide
  5. Storage array plug-ins for Snapshot Manager for Data Center
  7. Dell EMC PowerMax and VMax array
  9. Supported Snapshot Manager for Data Center operations on Dell EMC PowerMax and VMax
NetBackup™ Snapshot Manager for Data Center Administrator's Guide

Supported Snapshot Manager for Data Center operations on Dell EMC PowerMax and VMax

NetBackup Snapshot Manager for Data Center performs the following management operations on the Dell EMC PowerMax and VMax:

Table: Snapshot Manager for Data Center operations on Dell EMC PowerMax/ VMax plug-in

Snapshot Manager for Data Center operation

Description

Discover assets

NetBackup Snapshot Manager for Data Center discovers all the volumes, Storage groups, and Storage group snapshots.

Create snapshot

Dell EMC Unisphere for PowerMax and Unipshere for VMax allows snapshot creation for entire storage group. The storage group snapshot contains a single Point-in-time copy of all the volumes in the storage group at that time.

To create a snapshot on the storage group, NetBackup Snapshot Manager for Data Center initiates a POST REST API call on the Storage group that contains the volumes. A snapshot name is also provided. The API returns the details of the snapshot.

To create a snapshot on the volume part of a storage group, NetBackup Snapshot Manager for Data Center creates a POST REST API call on the storage group that contains the specific volume. A snapshot name is also provided. The API returns the details of the snapshot.

A typical snapshot created by NetBackup Snapshot Manager for Data Center has the following naming convention:

NB<unique_21digit_number>

Note:

Snapshots are created in the storage group. The only way to distinguish the snapshots is based on which asset the operation was created. If the snapshot is created on a volume, then the snapshot is mapped to the volume. If created on a storage group, the snapshot is mapped to the storage group asset.

Delete snapshot

To delete a snapshot, Snapshot Manager for Data Center initiates a DELETE REST API call with the required snapshot details and confirms that the snapshot has been deleted successfully on the array.

Restore snapshot

Snapshot Manager for Data Center uses the storage group snapshot restore API from Unisphere.

To restore a snapshot to the point-in-time image on the volume.

  1. Create an empty temporary storage group.

  2. Add a volume that is to be restored in the storage group.

  3. Restore the temporary storage group.

  4. Delete the temporary storage group.

While restoring a snapshot to the point-in-time image on the storage group, all the volumes that were part of the storage group at the time of snapshot creation, are restored to the storage group snapshot state.

Export snapshot

When a snapshot export operation is initiated:

Perform the following steps:

  • For volume export perform the following steps:

    • Fetch the initiators on which you want to perform the export.

    • Create an empty temporary storage group.

    • Add a source volume whose snapshot is to be exported in the storage group.

    • Now, considering temporary storage as the source storage group, create an export storage group from the snapshot and link the snapshot to the exported storage group.

    • Fetch the Host ID and Port group ID.

    • Using the export storage group, Host ID and Port group ID, create a masking view group that attaches the exported storage group to the host.

  • For storage group export, all the volumes that are a part of the storage group snapshot are added to the new the storage group, and attached to the host.

    • All the steps performed in volume export are same for storage group export for all the volumes.

Deport snapshot

When a snapshot deport operation is initiated, the exported storage group, and the volume(s) inside it, and the temporary storage group used as a source for the snapshot, are all deleted. It is a revert or clean-up of the export snapshot.

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