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Data protection

Data ONTAP provides a wide range of data protection capabilities, such as aggr copy, MetroCluster, NDMP, NVFAIL, SnapLock, SnapMirror, SnapRestore, Snapshot copies, SnapVault, SyncMirror, tape backup and restore, virus scan support, and vol copy.

Feature Description
aggr copy This is fast block copy of data stored in aggregates; it enables you to copy blocks of stored system data from one aggregate to another.

For information about aggregates and aggr copy, see the Data ONTAP Storage Management Guide for 7-Mode.

MetroCluster MetroCluster enhances SyncMirror functionality for disaster recovery by providing continuous volume mirroring over 500-meter to 30-kilometer distances.

For information about disaster protection using MetroCluster, see the Data ONTAP High Availability and MetroCluster Configuration Guide for 7-Mode.

NDMP (Network Data Management Protocol) NDMP support enables third-party applications that use NDMP to manage tape backup operations of system data. The ndmpcopy command carries out NDMP-compliant backups and restores. Security login restricts access to NDMP operations.

For information about NDMP, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.

NVFAIL The nvfail option provides protection against data corruption by nonvolatile RAM (NVRAM) failures.

For information about NVFAIL, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.

SnapLock software SnapLock provides an alternative to traditional optical WORM (write-once-read-many) storage systems for nonrewritable data.

For information about SnapLock, see the Data ONTAP Archive and Compliance Management Guide for 7-Mode.

SnapMirror software System-to-system Snapshot mirroring enables you to mirror Snapshot copies on one storage system to a partner system. If the original storage system is disabled, this ensures quick restoration of data from the point of the last Snapshot copy.

For information about SnapMirror, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.

SnapRestore software The SnapRestore feature performs fast restoration of backed-up data on request from Snapshot copies on an entire volume.

For information about SnapRestore, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.

Snapshot software Manual or automatically scheduled multiple backups (or Snapshot copies) of data using a minimal amount of additional disk space at no performance cost.

For information about how Data ONTAP organizes and manages data, see the Data ONTAP Storage Management Guide for 7-Mode.

For information about Snapshot copies, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.

SnapVault software SnapVault combines Snapshot schedules and Qtree SnapMirror to provide disk-based data protection for storage systems.

Using SnapVault, you can periodically replicate selected Snapshot copies from multiple client systems to a common Snapshot copy on the SnapVault server. The Snapshot copies on the server become the backups. You decide when to dump data from the SnapVault server to tape. As a result, you avoid the bandwidth limitations of tape drives, you restore data faster, and you do not need to perform full dumps from primary storage, so you do not need to schedule a backup window.

For information about SnapVault, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.

Storage Encryption Storage Encryption protects your data at rest by storing it encrypted on the disk. In a standard storage environment, data is written to disk in cleartext format. This makes the data vulnerable to potential exposure to unauthorized users when disks removed from a storage system are lost or stolen. Storage Encryption is an optional feature that you can enable for additional data protection. It is available on certain supported storage controllers and disk shelves that contain disks with encryption functionality. It does not require a separate license key. It happens without a perceptible disk performance decrease or boot time increase. The only additional hardware required is an external key management server. The self-encrypting disks in the storage system automatically encrypt the data for storage. When you enable Storage Encryption, the disks require authentication to access and decrypt the data. The authentication key is stored securely on an external key management server that is linked to the storage system.
SyncMirror (high-availability configuration required) The SyncMirror software performs real-time RAID-level—that is, RAID4 or RAID-DP (RAID double-parity)—mirroring of data to two separate plexes that are physically connected to the same storage system controller. If there is an unrecoverable disk error on one plex, the storage system automatically switches access to the mirrored plex. Data ONTAP supports RAID4 and RAID-DP only for disk shelves.

Similarly, SyncMirror can be used for mirroring of third-party storage. In the case of an unrecoverable error, Data ONTAP automatically switches access to the mirrored plex on the other storage array. Data ONTAP uses RAID0 for managing storage on array LUNs, but the storage arrays provide RAID protection for third-party storage.

For information about supported RAID levels and plexes, see the Data ONTAP Storage Management Guide for 7-Mode. For information about SyncMirror, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.

Tape backup and restore Tape backup dump and restore commands enable you to back up system or SnapVault Snapshot copies to tape. Because the Snapshot copy, rather than the active file system, is backed up to tape, the storage system can continue its normal functions while the tape backup is occurring.

For information about tape backup, see the Data ONTAP Data Protection Tape Backup and Recovery Guide for 7-Mode.

Virus scan support Data ONTAP provides support for third-party scanning software for files accessed by CIFS clients.

For information about virus protection for CIFS, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.

vol copy This is fast block copy of data stored in volumes; it enables you to copy blocks of stored system data from one volume to another.

For information about volumes and vol copy, see the Data ONTAP Data Protection Online Backup and Recovery Guide for 7-Mode.