Snapshots – An Overview

nimble-admin47 — Wed, 30 Jan 2013 04:26:11 GMT

In the storage world, snapshots are a point-in-time copy of data. They have been around for some time and are increasingly being used by IT to protect stored data. A snapshot copies the metadata (nee index) of the data instead of copying the data itself. This means taking a snapshot is almost always instantaneous. This is one of the primary advantages of storage-based snapshots—they eliminate backup windows. In traditional backup deployments, applications either have to be taken off-line or suffer from degraded performance during backups (which is why traditional backups typically happen during off-peak hours). This means snapshot-based backups can be taken more frequently, improving recovery point objectives.

For more information, read the blogs:

– O Snapshot: What Art Thou?

– Snapshot: Part Deux

topic Snapshots – An Overview in Array Performance and Data Protection

Snapshots – An Overview