VxFS file systems that were previously created in the global zone can be made available in the non-global zone using a loopback file system mount. This functionality is especially useful when the sole purpose of making the file system available in the non-global zone is to share access of this file system with one or more non-global zones. For example, if a configuration file is available in a particular file system and this configuration file is required by the non-global zone, then the file system can be shared with the non-global zone using a loopback file system mount.

The following commands share access of file system /mnt1 as a loopback file system mount with the non-global zone myzone:

  global# zonecfg -z myzone
  zonecfg:myzone> add fs
  zonecfg:myzone:fs> set dir=/mnt1
  zonecfg:myzone:fs> set special=/mnt1
  zonecfg:myzone:fs> set type=lofs
  zonecfg:myzone:fs> end
  zonecfg:myzone> commit

The value of dir is a directory in the non-global zone. The value of special is a directory in the global zone to be mounted in the non-global zone.

The loopback file system mount mode of sharing file systems in the non-global zones is supported in Veritas File System 4.1 and later.