Quote from: BookLover on January 08, 2015, 03:22:23 PM

RAID arrays are not always used for speed. They can be used for:

Quote from: Wikipedia

To make the loss of data happen less often. This is done by having several copies of the data.
   To get more storage space by having many smaller disks.
   To get more flexibility (Disks can be changed or added while the system keeps running)
   To get the data more quickly.

So again, in response to:

Quote from: RD965 on January 02, 2015, 01:50:20 PM

Raid setups are always less safe!

I say:

Quote from: BookLover on January 06, 2015, 03:59:19 PM

Depending on the RAID level used a RAID array can be dramatically safer than independent disks.

Agree

Then you have the choice of speed vs reliability

In the "mirroring" mode, dont you lose space and speed? Whats the difference between having that and a backup hdd?