Migrating a directory to a separate filesystem on AIX


You have a directory that deserves it’s own file system for some reason. This could be because you need to increase throughput, manage backups separately, manage quotas separately or just to have a cleaner data architecture.


  • Create a new filesystem using mkfs
  • Mount the new filesystem temporarily to /mnt
  • Stop all processes that access the directory to move
  • Move all contents to the new filesystem using mv
  • umount /mnt
  • mount /new/filesystem /path/to/directory

This principle is pretty much the same of any Unix operating system.