Hi Mark, > Can anyone provide some advice on that I am missing conceptually? > > Several issues. First, if you use 4k blocks, the max filesystem size for > ext3 is 16TB (see wikipedia on ext3). Second, I can't remember where, but > on some filesystem tool's manpage, I read that the tools have problems > going over 16TB. Third, fsck on a 16TB filesystem will take *days*, > literally. I'm setting up, right now, a humongous RAID box, and I'll > probably be divvying up the 42TB (mirrored!) as 3 14TB filesystems, and > they're going to be ext4. > 16tb is the max I would have for this device. Jason