Sun Cluster System Administration Guide for Solaris OS

ProcedureHow to Migrate the Global-Devices Namespace From a Dedicated Partition to a lofi Device

  1. Become superuser on the global-cluster voting node whose namespace location you want to change.

  2. Ensure that a file named /.globaldevices does not exist on the node. If the file does exist, delete it.

  3. Create the lofi device.

    # mkfile 100m /.globaldevices# lofiadm -a /.globaldevices# \
    LOFI_DEV=`lofiadm /.globaldevices`# newfs `echo ${LOFI_DEV} | \
    sed -e 's/lofi/rlofi/g'` < /dev/null# lofiadm -d /.globaldevices
  4. In the /etc/vfstab file, comment out the global-devices namespace entry. This entry has a mount path that begins with /global/.devices/node@nodeID.

  5. Unmount the global-devices partition /global/.devices/node@nodeID.

  6. Disable and re-enable the globaldevices and scmountdev SMF services.

    # svcadm disable globaldevices# svcadm disable scmountdev# \
    svcadm enable scmountdev# svcadm enable globaldevices

    A lofi device is now created on /.globaldevices and mounted as the global-devices file system.

  7. Repeat these steps on other nodes whose global-devices namespace you want to migrate from a partition to a lofi device.

  8. From one node, populate the global-device namespaces.

    # /usr/cluster/bin/cldevice populate

    On each node, verify that the command has completed processing before you perform any further actions on the cluster.

    # ps -ef \ grep scgdevs

    The global-devices namespace now resides on a lofi device.