5.Data archiving benefits

The greatest benefit of archiving data is it reduces the cost of primary storage. Primary storage is typically expensive, because a storage array must produce a sufficient level of IOPS to meet operational requirements for user read/write activity. In contrast, archive storage costs less, because it is typically based on a low-performance, high-capacity storage medium. Data archives can be stored on low-cost hard disk drives (HDDs), tape or optical storage that is generally slower than performance disk or flash drives.

Archive storage also reduces the volume of data that must be backed up. Removing infrequently accessed data from the backup data set improves backup and restore performance. Typically, data deduplication is performed on data being moved to a lower storage tier, which reduces the overall storage footprint and lowers secondary storage costs.