Delegating VxFS file systems to a non-global zone
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Delegating VxFS file systems to a non-global zone

Exclusive access of a VxFS file system can be delegated to a non-global zone by direct mounting the file system in the non-global zone. Using direct mounts limits the visibility of and access to the file system to only the non-global zone that has direct mounted this file system.

Delegating file systems to non-global zone using direct mounts is supported in Veritas File System 4.1 Maintenance Pack 1 and later.

To direct mount a VxFS file system in a non-global zone, the directory to mount must be in the non-global zone and the mount must take place from the global zone. The following procedure mounts the directory dirmnt in the non-global zone myzone with a mount path of /zonedir/myzone/root/dirmnt.

Note:

VxFS entries in the global zone /etc/vfstab file for non-global zone direct mounts are not supported, as the non-global zone may not yet be booted at the time of /etc/vfstab execution.

Once a file system has been delegated to a non-global zone through a direct mount, the mount point will be visible in the global zone through the mount command, but not through the df command.

To direct mount a VxFS file system in a non-global zone

  1. Log in to the zone and make the mount point:

      global# zlogin myzone
  myzone# mkdir dirmnt
  myzone# exit

  2. Mount the VxFS file system:

      global# mount -F vxfs /dev/vx/dsk/dg/vol1 /zonedir/zone1/root/dirmnt

  3. Log in to the non-global zone and ensure that the file system is mounted:

      global# zlogin myzone
  myzone# df | grep dirmnt
  /dirmnt (/dirmnt):142911566 blocks 17863944 files
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