You can move the <xref part up to the previous line.

s/Foce/Force/

s/By default/By default,/

s/chose activate/chose to activate/

s/allow/allows/
s/the possibility//

s/encryption in/encryption is available in/

s/options/option/

s/Allow/Allows/
s/thead possibility//

s/to chose/to/

I'd write: Encrypts the swap with a temporary key each time... (combine this with the next sentence).
s/and discarded/and discards it/

... storage of all connected devices, but no redundancy.
s/the one/just one/
s/the information/the data on the pool/
s/is lost./is lost irrevocably./

s/can be readed/is read/
s/from any disk/from all disks in parallel./

I'd write:
Write performance is slower as the data must be written to all disks in the pool. (basically combine the two short sentences into one)

s/options needs/option requires/

... and a minimum of four disks.

s/let/leave/