Andrew, a YDL user offers this valuable information, "With the 2.4 kernel on a 32-bit processor there is a block device limit of 2TB. This limitation isn't present on 64-bit systems and is gone even for 32-bit systems in 2.5. The new maximum filesystem limit is dependent on the type of filesystem used:
ext3: 2TB
reiserfs: 16TB
xfs: 9EB
jfs: 4PB
There are a lot of layers involved here (block, vfs, filesystem, glibc). As the Xserve RAID presents each RAID volume as a real block device, I'm pretty sure you can combine as many of these (with the limits applying to each volume) as you want with lvm."
