NetBackup™ Snapshot Manager for Data Center Administrator's Guide

In a SAN environment, NetBackup Snapshot Manager for Data Center discovers the Volumes, LUNs that are created from storage volumes.

Only LUNs whose status is online, read-write operations are enabled, and the Snapshot auto delete parameter is set to false, are discoverable.

["state":"online","vol_type":"rw"," is_snapshot_auto_delete_enabled": "false"]

In a NAS environment, NetBackup Snapshot Manager discovers all the NFS shares and volumes with security style UNIX and mixed mode on the NetApp storage. It also discovers SMB shares with Windows security style. The shares must have an active junction_path configured so that NetBackup Snapshot Manager can discover them.

In a NAS environment, NetBackup Snapshot Manager discovers all the Data Protection volumes with NFS shares, volumes with security style UNIX as well as mixed mode, and the SMB shares with Windows security style.

In a SAN environment, NetBackup Snapshot Manager takes a snapshot of the NetApp volumes and LUNs.

When NetBackup Snapshot Manager triggers a LUN snapshot on the NetApp storage, it internally triggers a redirect-on-write (ROW) snapshot of the entire volume to which the LUN belongs. If the volume contains multiple LUNs, the snapshot includes data from all the LUNs that reside on that volume.

When a Volume Snapshot is triggered on the NetApp Storage, it creates a redirect-on-write (ROW) snapshot of the entire volume and returns the snapshot data of that volume.

A typical snapshot created by NetBackup Snapshot Manager has the following naming convention: NB<unique_21digit_number>

In a NAS environment, NetBackup Snapshot Manager takes a snapshot of the NetApp NFS as well as SMB shares.

In a SAN environment, when you delete a LUN snapshot, NetBackup Snapshot Manager internally deletes the snapshot of one or more volumes to which the LUN belongs.

When you delete a Volume snapshot, NetBackup Snapshot Manager for Data center deletes the snapshot corresponding to the Volume.

In a NAS environment, NetBackup Snapshot Manager deletes the snapshot of the share.

In a SAN environment, when you restore a LUN from a snapshot, NetBackup Snapshot Manager only restores the particular LUN on which the restore is triggered. The LUN snapshot is a ROW snapshot of the underlying volume, and that volume can contain multiple additional LUNs. Even if the snapshot contains data from multiple LUNs, the restore is performed only for the selected LUN. Data on the other LUNs remains unchanged.

When you restore a Volume from a Volume snapshot, NetBackup Snapshot Manager restores the snapshot copy to the read-write Volume. Replacing the current working copy of the volume i.e. all underlying LUNs of the volume with snapshot. This results in the Volume state to that of snapshot copy.

In a NAS environment, NetBackup Snapshot Manager restores the volume using the specified snapshot.

In a SAN environment, when a NetBackup snapshot export operation is triggered, NetBackup Snapshot Manager creates a LUN from the snapshot and attaches it to target host. The target host is assigned read-write privileges on the exported LUN.

When a snapshot export operation is triggered for a Volume snapshot, NetBackup Snapshot Manager creates a volume from the snapshot and attaches all the LUNs associated with the Volume to target.

The export operation is supported using the following protocols:

In a NAS environment, when a snapshot export operation is triggered,

In a SAN environment, when a snapshot deport operation is triggered, NetBackup Snapshot Manager removes the LUN mapping from the target host and then deletes the LUN.

In a NAS environment, when a snapshot deport operation is triggered.

In a NAS environment, NetBackup Snapshot Manager replicates a snapshot of the NetApp NFS and SMB shares to a destination target array.

A typical replica snapshot created by NetBackup Snapshot Manager has the name as that of source snapshot name and naming convention:NB<unique_21digit_number>