With an 80GB primary drive only 26% allocated and an empty 250GB drive, I used LVM2 to create one 298GB drive from the unallocated portions of both. This will make myth video repository administration a bit easier. Also, I plan to add one more disk in the future, and LVM allows you to extend my video logical volume with any other combinations of disks and partiions at any time. JFS was used to initialize the new logical partition. The Gentoo LVM guide
and LVM Recipies
list were invaluable in making this a successfull operation on the first try, without any data loss.