Why RAID is not a backup but is part of redundancy?

RAID Is Not Backup When a file is deleted it is deleted from all the drives. When a file is overwritten it is overwritten on all the drives. Therefor a RAID array is not a backup solution. RAID does not stop malware, ransomware, viruses, etc.

What is NAS redundancy?

Redundancy is a data protection method intended as a real-time fail-safe measure against hard drive failure. A common redundancy feature found in servers and NAS boxes to prevent data loss is RAID (which stands for Redundant Array of Independent Disks), which creates multiple copies of files across several hard drives.

What is the difference between RAID and backup?

The main difference between RAID vs. backup is that, although backups help you recover from a data loss event, RAID exists as a tool for keeping data loss from happening in the first place.

Is redundancy the same as backup?

Backups are specifically about creating copies of data in the event that your business experiences an incident where data loss occurs. Redundancy, on the other hand, is much more than just data storage. Redundancy makes sure your business is able to provide continuity in its services no matter what happens.

Why is RAID 1 not a backup?

RAID 1 isn’t a substitute for backup because there are a lot of risks that it can’t protect against. If you accidentally delete a file, it will instantly be removed from both mirrored copies. If your disk is corrupted by a software bug or virus, the corruption will be done to both mirrored copies simultaneously.

Can RAID be considered as backup?

Is RAID a backup? While RAID arrays can provide enhanced data protection, their extra disks should not be considered as backups. If your main drive is a RAID array, you still need to back it up.

Which is better RAID or backup?

RAID or Backup – The Conclusion If you’re a home user, a backup solution is far more important. Installing RAID would be overkill in 99.99\% of cases, unless you absolutely need data redundancy for some reason. For businesses, the ideal solution is to have both backups and RAID.

What is the difference between NAS and RAID?

Like a RAID server, NAS uses a RAID configuration for redundancy and increased speed. Rather than using separate RAID arrays, resulting in additional software and hardware costs, a NAS device permits network connection to any workstation without using the resources of the computer it is attached to.

What is difference between RAID drives and backup solution?

The basic purpose of RAID is to provide redundancy, if one disk fails, the other drives essentially take over until the failed drive is replaced. Backups on the other hand protect against data corruption and loss, but don’t provide true redundancy.

Which is better raid or backup?

What is RAID backup?

RAID is a backup for a drive failing. Saying that it isn’t a hard drive would be like saying a hard drive which keeps a copy of all your data is not a backup because a hurricane could take both of them out at once. Before planning your backup solution you should first figure out what you are trying to defend against.