Managing Serviceguard Nineteenth Edition, Reprinted June 2011

disks in disk group dg_01 and sets the noautoimport flag for the disks. This flag prevents a disk
group from being automatically re-imported by a node following a reboot. If a node in the cluster
fails, the host ID is still written on each disk in the disk group. However, if the node is part of a
Serviceguard cluster then on reboot the host ID will be cleared by the owning node from all disks
which have the noautoimport flag set, even if the disk group is not under Serviceguard control.
This allows all cluster nodes, which have access to the disk group, to be able to import the disks
as part of cluster operation.
The control script also uses the vxvol startall command to start up the logical volumes in
each disk group that is imported.
How Control Scripts Manage VxVM Disk Groups 247