On Tue, 23 Jun 2015, John R Pierce wrote: > While it has the same concepts, physical volumes, volume groups, logical > volumes, the LVM in AIX shares only the initials with Linux. I've heard > that Linux's LVM was based on HP-UX's design. Sure, and IRIX had a similar concept, although my experiences with that were slightly less good than with LVM on linux. > in AIX, the LVM is tightly integrated with file system management, so you > issue the command to grow a file system, and it automatically grows the > underlying logical volume. the OS itself can automatically grow file > systems when its installing software. Also, in AIX, the volume manager is the > raid manager, you say 'copies = 2' as an attribute of a LV, and data is > mirrored. Without knowing the details, this is possibly just semantics. With lvresize, you can resize the LV and the filesystem in one go. With lvcreate --type raid1 you can specify that a given LV is RAID1 mirrored. jh