Hello.

Our company bought 7 disks NL-SAS 4000Gb. How it is more correct to add them to the existing storage pool?

extreme - RAID5(4+1) SSD 100Gb

performance - 4*RAID5(4+1) SAS 600Gb

capacity - RAID6(14+2) NL-SAS 2000GB

If I correctly understand, these big disks will be added to capacity tier, but thus defective RAID6 will turn out.