Akhil Dev – Super Charged Digital Marketing Strategy for Your Business › Ask Questions › General Questions › Why is RAID not a backup?
- MemberAugust 21, 2020 at 2:52 pm
When someone mentions RAID in a conversation about backups, invariably someone declares that “RAID is not a backup.”
Sure, for striping, that’s true. But what’s the difference between redundancy and a backup?
MemberAugust 21, 2020 at 3:16 pm
RAID guards against one kind of hardware failure. There’s lots of failure modes that it doesn’t guard against.
- File corruption
- Human error (deleting files by mistake)
- Catastrophic damage (someone dumps water onto the server)
- Viruses and other malware
- Software bugs that wipe out data
- Hardware problems that wipe out data or cause hardware damage (controller malfunctions, firmware bugs, voltage spikes)
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