On 2013.11.06 11:28, tclug at freakzilla.com wrote: > Yeah, I'm worried especially about stability on Linux, since I'm not > rebuilding this entire server (: > > This is software RAID5 - can ZFS just take over from that? I've not done a > ton with it. Depends on what you mean by take over. You can have an arbitrary number of data disks with an arbitrary number of parity disks (though using 2, 4, or 8 data disks is more efficient than other configurations), so yes, you can easily do 4+1 with ZFS. If you mean have some kind of RAID setup already that you want to put ZFS on top of, that's a bad idea and you should let ZFS' zpool functionality handle that. You shouldn't (and in some cases can't) use other volume management or RAID systems underneath ZFS, since it can lead to ZFS making poor decisions based on incorrect information about the disks.