Storage in FreeNAS 11

[Jakeman199]

Hi Guys
i am just setting up my first nas and i have 3x2tb WD red and 1x3TB WD red Drive and looking to create a large array to use but want to have redundancy so i dont lose data of a drive fails. can someone guide me please? cheers in advance.

 

[danb35]

How large do you need it to be? The largest capacity you could get with those disks, while keeping some redundancy, would be to put all four of them into a single RAIDZ1 array. That would have a net capacity of about 6 TB (the 3 TB drive would be used as though it were a 2 TB drive), which you shouldn't fill more than 80% full. Most of us, though, wouldn't recommend RAIDZ1; we'd recommend either RAIDZ2 or mirrors. Either of those would provide about 4 TB of net capacity, but better redundancy.