I've been using Raid 0 to store my data over 700GB.
I've decided to go with Raid 1. Will it re-format the drives?
Raid 0 is the opposite of a back up, it puts your data at more risk than a single drive, as if one drive dies it wipes out the data on both.
Riad 1 is mirroring, but if you delete or lose a file one then you lose it on both anyway.
RAID (of whatever flavour, apart from RAID 0) is a mechanism for protecting yourself against hardware failures. It increases data redundancy and protects you against physical failure of one (or more) disks. RAID isn't a backup mechanism and you shouldn't rely on it as such a mechanism. if you need backup, use an external disk as psikey said.What's the best option for backup?
I've a 500GB Maxtor External drive which I've used for 6 years now. I decided to buy bigger storage and thought NAS was a storage option.
Then I bought Qnap TS-219P+ with 2 X 2TB Samsung F3 and I've copied all my data from Maxtor to the Qnap and left them in my cupboard for months.
Thanks for informing me that NAS is not backup. So I'm looking for an option of my 4TB (2X2TB) Samsung
Any suggestion will help. I've to sell the Qnap if anyone will be interested