Depending on the specification, some iba computers are equipped with a RAID. This provides a minimum level of data security, but is not a substitute for a backup that protects the data against ransomware or the failure of hardware components, for example.

When defining an appropriate backup strategy, the following questions should be addressed:

  • For how long must the data be kept?

  • Which data needs to be backed up?

  • When is the best time to perform a backup?

    1. daily

    2. at the end of a shift

    3. during maintenance activities

  • Backup over a network:

    1. Network bandwidth?

    2. What might be affected by a backup job?

  • How quickly can the data be recovered in an emergency (Recovery Time Objective, RTO)?

  • Does the 3-2-1 backup rule need to be applied?

3-2-1 backup rule

3

The data is available in 3 versions; e.g., 1x as live system and 2x as backups with restore points at much earlier dates

2

Backups on two different technologies; e.g., backup-to-disk, backup-to-tape, etc.

1

One backup that is always kept off-site or at another location to ensure the availability of the data in the event of a disaster