D2 Network which firmware?

Hello everyone, I have a lacie d2 network 2 with a quadra esata connected. Both 2T.
I would like to put your firmware to have some more features. For example, is it possible to use disks in raid 1?
And how do I know if my d2 network is vs1 or vs2?
Thanks for your help.
I would like to put your firmware to have some more features. For example, is it possible to use disks in raid 1?
And how do I know if my d2 network is vs1 or vs2?
Thanks for your help.