Dan Ritter wrote: >> Raid6 sounds promising. Equivalent capacity is also one drive? > > No, you actually get about 2 drives of capacity out of 4 here.
You get N-1, so from 4x2TB disks you get close to 6TB RAID6 (you have also various FS layer overhead) Gene, IMO this is best option but I do not remember what was faster read or write - there was a catch, so depends on the usecase. I did on one I use for backup On storage server for HA I bought 2 LSI controllers that manage 2x6 3.5" disk bays - for now I have 4x4 disks that are equally distributed and in RAID1 - might be the 2 LSI was overkill and a limitation into some extent, but ... if one of them dies, the other will continue serve until replacement is there (and I still use 1Gbps copper which is the actual limitation for NFS SSH Samba or whatever goes trough) regards PS: just think twice, cause later it's harder to manage the amounts of data