> There is not RAID in AIX LVM, just mirroring (well, stripes too but > never mind that). Since you just map Logical Partitions to multiple > Physical Partitions (same as Physical Extents, PE, in the linux > implementation), it is easy to duplicate logical volumes to different > physical volumes. You can do this online of course, as it is all below > the filesystem/logical volume level. Migrating from one SAN to another, > one disk to another, adding disks, splitting disks, removing disks. All > is done in the LVM. As it should be. > > The linux approach is much more primitive. Too bad the linux lvm guys > used HP-UX LVM as their reference. http://www.catb.org/~esr/hackerlore/sco-vs-ibm.html to quote: logical volume management (LVM) It is a matter of record [53] that IBM's approach to LVM was rejected by Linus Torvalds in favor of a different approach. Accordingly, even if we were to stipulate that IBM had access to old SCO's LVM technology, any attempted misappropriation came to naught. Thad -- sometimes truth is stranger than fiction -bad religion- http://www.bloglines.com/blog/mailist