Backup, Archiving, and Backup Archiving are three different things. Here is why:
- Data storage for the purpose of recovery when the original data is lost or corrupted.
- To protect against accidental file modifications and system failures.
- Generally supports snapshots for recovery to a given point of time in the past.
- The entire data is backed up initially, and then Incremental backup is employed (along with technologies like deduplication and compression) so that only the changes are sent/stored from the next time.
- Generally, backups are taken at the end of the day/week. But Near Continuous Data protection is also possible, for critical applications.
- Can backup data to a second location, removable storage, or public cloud.
- Recovery time needs to be quick.
- Sometimes, if primary source is deleted (by the admin), backup is also deleted.
- Data is stored for retention or long-term preservation.
- Everything is stored (another device, removable storage media, public cloud) just once without much need for frequent saving/retrieval.
- Driven by regulatory requirements and internal rules and user needs like in cases where someone wants to retrieve an email attachment they deleted a couple of years ago.
- Archiving systems should be easily indexable, searchable, retrievable, and exportable.
- Email archiving is common, but archiving can be done for any type of data.
- Disaster Recovery is another driver.
- Even if primary source is deleted, data from archives is not deleted.
- Provision for protection of intellectual property through encryption, etc. maybe available.
- Backup archiving refers to retention of backup data (monthly or yearly) for long-term preservation.
- Generally, backups are archived in a secondary location (offsite) by writing to storage systems or removable media like tape drives and DVDs.
- Cloud-storage is also adopted for backup archiving nowadays, with Public Cloud providers like Amazon giving special plans for data archiving that doesn’t require frequent retrieval.
You could stay up to date on Computer Networking/IT Technologies by subscribing to this blog with your email address in the sidebar box that says, ‘Get email updates when new articles are published.’