Hi, all -- I have finally gotten my two new 4T disks to be recognized under a Studio build; yay :-) Thanks for the pointers over to those resources. I'm still fine-tuning, but the wonderful thing is that all I have to do is write to a new uSD card and reboot, so I'll be able to play with that once things are back together. Now it's time to build the system and start consolidating data. I have questions about identification and sizing, though. Since I'll have two generally identical disks in here, I'd like to know easily which one has a problem if that ever comes up, so I thought I'd include the serial no in the disk label so that /dev/disk/by-id and/or /dev/disk/by-uuid shows me (and then I'd mount by the ID rather than the traditional bus device, of course). But I don't see how to set the disk identification in parted. Did I miss something? If that doesn't work out, I could fall back to partition labeling, which I *was* able to accomplish under parted and which does properly display in /dev/disk/by-partlabel (although not in by-partuuid; can I force that?) even though it then shows up as /dev/sda1 in df output. [Well, I guess that could be acceptable, too, since I'd have the actual device info in the fstab.] Next, sizing. Back in the fdisk days I could see how many cylinders were [supposedly :-] on a disk and use 'em all; apparently under parted I have to specify an offset and size for my new partition. The offset is 0, so that one is easy :-) How do I find the end of the disk more closely than 4TB or 4000GB, though, so that I use it all, other than perhaps by trial and error? Another thing I have done in the past is slice off a couple of cylinders at the end of the disk in which to store info about that device (see my mirroring email next). Again, to do that, I'd need to know the real sizing info. Any thoughts? Thanks again & HAND :-D -- David T-G See http://justpickone.org/davidtg/email/ See http://justpickone.org/davidtg/tofu.txt