Should I double my storage with my current setup?

[Estropelic]

I've had my FreeNas up and running for some time now "3 years." I was thinking about upgrading "doubling my hard drives space as I have enough memory to do so" or building a new machine all together. What would you guys do with my current configuration?

Fractal Node 304

• 1X ASRock C2750D4I Mini ITX Server Motherboard FCBGA1283 DDR3 1600 / 1333
• 1 x Crucial 16GB (2 x 8GB) 240-Pin DDR3 SDRAM ECC Unbuffered DDR3L 1600 (PC3L 12800) Server Memory Model ...
• 6X WD Red 2TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD20EFRX

Edit: Spelling

 

[colmconn]

What do you mean by "doubling my hard drives spaces": going from 6x 2TB to 12 x2TB or going from 6x2TB to 6x4TB?

 

[Estropelic]

What do you mean by "doubling my hard drives spaces": going from 6x 2TB to 12 x2TB or going from 6x2TB to 6x4TB?

I was thinking of going from 6X2Tb to 6x4Tb

 

[colmconn]

I have that same MB, 32GB of RAM (in hindsight 16 to many) and two pools: one of SSDs (2x240GB in a mirror) and one of HDDs (one vdev (Z2) of 6x3TB and and a second vdev (Z2) of 6x4TB(Z2)). Depending on workload you'll probably be fine. If you stick with WD drives, make sure you do not get SMR drives. There are a couple of threads hereabouts describing why not.