NetApp Snapshot uses two types of snapshot technologies to handle data replication: Copy on Write (COW) and Redirect on Write (ROW). The COW technologies make a copy of the original information and then only after the replication process is completed does the system overwrite the modified data into the original blocks. In contrast, ROW redirects the snapshots to new storage blocks, updating pointers to those blocks, which always point to the original location. When NetApp Snapshot combines the two technologies, it allows customers to save storage efficiency by way of deduplication and compression.
NetApp Snapshot Features
NetApp Snapshot’s valuable features include:
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Data replication stability: Every NetApp Snapshot copy is an immutable, static copy, giving organizations the opportunity to create consistent backups from their storage system while applications are running.
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Performance impact: The performance of NetApp's systems that store NetApp Snapshot aren’t affected. The actions of creating or deleting a Snapshot copy also don't greatly impact the performance of the systems where they are located. NetApp’s storage can be used for data replication, backup, and archival even if a company is using another storage system.
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Storage scale: Another beneficial feature of NetApp is the volume of storage, which supports 255 Snapshot copies. This provides users with the opportunity to perform frequent data replication, thus creating current versions of their data.
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File recovery: The above-mentioned features allow for the creation of backup for recovery purposes. They also provide\ the opportunity to copy backups to offline storage as well as to create an archive for them.
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Storage utilization: The option for utilization of storage allows NetApp Snapshot users to benefit from storage volumes similar to those of active file systems. The software works through block increment, which limits the interval of time between added blocks of Snapshot copies, thus creating more efficient storage.
NetApp Snapshot Benefits
The benefits of using NetApp Snapshot include:
- Ability to create instant data replication while applications run
- Up to 255 data replicas available
- Various tools for full-package coverage, including SnapManager, SnapProtect, SnapMirror, SnapRestore, and SnapVault
Reviews from Real Users
Gregg N., Manager of Data Center Services at TTi Power Equipment, states that the primary use of NetApp Snapshot by his organization is as a data-protection solution in the cloud and in the data center. He points out that this data duplication software is very user-friendly, extremely stable, and scalable.
Edgar M., Sr. Data Protection Engineer at DataPivot Technologies, uses NetApp Snapshot for its monitoring or clone capabilities, and he agrees that the solution is very stable.
According to George A., CEO at BDPR Technologies Limited, the most valuable features of NetApp Snapshot are the integration with other vendors and customization.
