How do I restore NetApp Snapshot?

How do I restore NetApp Snapshot?

Select the volume that you want to restore from a Snapshot copy. Click Actions > Manage Snapshots > Restore. Select the appropriate Snapshot copy, and then click Restore. Select the confirmation check box, and then click Restore.

Where are NetApp snapshots stored?

Snapshot copies are stored in the directory . snapshot on the volume.

How does Snapshot work in NetApp?

The Snapshots feature uses copy-on-write technology. After the snapshot is taken, the first write to any block or set of blocks on the base volume causes the original data to be copied to the reserved capacity before writing the new data to the base volume. Subsequent snapshots include only changed data blocks.

What is a Snapshot copy?

A Snapshot copy is a read-only, point-in-time image of a volume. The image consumes minimal storage space and incurs negligible performance overhead because it records only changes to files since the last Snapshot copy was made. A Snapshot policy defines how the system creates Snapshot copies of volumes.

How to create a snapshot copy policy in NetApp?

This procedure creates a Snapshot copy policy on the local cluster only. Click Protection > Overview > Local Policy Settings. Under Snapshot Policies, click , and then click . Type the policy name, select the policy scope, and under Schedules, click to enter the schedule details.

Why does ONTAP make a snapshot copy of a file?

It’s because ONTAP references metadata when it creates a Snapshot copy, rather than copying data blocks, that Snapshot copies are so efficient. Doing so eliminates the seek time that other systems incur in locating the blocks to copy, as well as the cost of making the copy itself.

When to delete a snapshot copy of an application?

You can also delete a Snapshot copy if it is no longer required. If you want to delete a Snapshot copy that is busy or locked, you must have released the Snapshot copy from the application that was using it.

How often should I create a snapshot copy?

For example, a system might create one Snapshot copy every day at 12:10 a.m., retain the two most recent copies, name them daily (appended with a timestamp), and label them daily for replication.