What is a LUN snapshot?

What is a LUN snapshot?

Answer. Snapshot is a locally retained read-only point-in-time image of the data. When a snapshot of a LUN is taken, snapshot copies the pointers to the corresponding LUN blocks on the disk. There is no data copied or moved. When there is a change in the LUN data, it is written to new blocks on the disk.

What is LUN cloning?

A LUN clone is a point-in-time, writable copy of a LUN in a Snapshot copy. Changes made to the parent LUN after the clone is created are not reflected in the Snapshot copy. A LUN clone shares space with the LUN in the backing Snapshot copy.

How do I restore my LUN?

Access the snapshots of the LUNs from a configured host to recover the files they contain….

  1. Click Storage > LUNs.
  2. Select a LUN or LUN group, and click Details.
  3. Click the Snapshots tab.
  4. Select the snapshot from which you want to recover data, and click Attach.
  5. Click Yes to confirm or No to cancel.

What describes multiple LUN snapshots?

What describes multiple LUN snapshots? A. Captures multiple point-in-time data states. Snapshot data state is marked “unmodified” from its source when attached.

How do you clone a LUN in netapp?


  1. Create a LUN by entering the following command: lun create -s size -t lun type lun_path.
  2. Create a Snapshot copy of the volume containing the LUN to be cloned by entering the following command: snap create volume_name snapshot_name.
  3. Create the LUN clone by entering the following command:

What is LUN Synology?

Hyper Backup allows you to perform LUN (Logical Unit Number) backup to a local or remote Synology NAS.

What is the purpose of a LUN?

In computer storage, a logical unit number, or LUN, is a number used to identify a logical unit, which is a device addressed by the SCSI protocol or by Storage Area Network protocols that encapsulate SCSI, such as Fibre Channel or iSCSI.

How do you create a LUN in Synology?

Go to SAN Manager (DSM 7.0)/iSCSI Manager (DSM 6. x) > LUN and click Create….Click Next to continue.

  1. Name: Enter a name for the LUN.
  2. Location: Specify where the LUN will reside.
  3. Total Capacity: Enter the capacity of the LUN in Gigabytes.
  4. Space Allocation: Thick Provisioning provides better stability in LUN performance.

What is the difference between LUN and volume?

A LUN is a logical volume from the point of view of the storage. From the client point of view the LUN it is a disc volume that can be partitioned. Volume is a generic term. It means a contiguous storage area.

Is LUN a storage?

A logical unit number (LUN) is a unique identifier for designating an individual or collection of physical or virtual storage devices that execute input/output (I/O) commands with a host computer, as defined by the Small System Computer Interface (SCSI) standard.