The problem
RAID can improve availability, but it is not a substitute for backup.
Recommended approach
Choose RAID based on performance, usable capacity and fault tolerance, then pair it with independent backups.
Step-by-step checklist
- Define required usable capacity.
- Define acceptable disk failure tolerance.
- Choose RAID level with the workload in mind.
- Monitor array health.
- Maintain tested backups outside the array.
MY WAY IT SERVICES
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