vgreduce - Reduce a volume group by removing one or more physical volumes from it
/usr/sbin/vgreduce VolumeGroupName PhysicalVolumePath ...
This command is no longer supported on Digital UNIX systems. Features formerly provided by the Logical Volume Manager (LVM) are now provided by the Logical Storage Manager (LSM). Existing LVM volumes must be migrated to LSM, using an encapsulation process. For information about moving LVM volumes to LSM, see the vollvmencap(8) reference page and the manual Logical Storage Manager. The vgreduce command removes the physical volume(s) specified with the PhysicalVolumePath parameter from VolumeGroupName.
All but one physical volume can be removed. The last physical volume must remain in the volume group so that the logical volume driver can continue to operate. The last physical volume in the volume group is removed by the vgremove command.
All logical volumes residing on the physical volume(s) represented by the PhysicalVolumePath parameter must be removed by executing the lvremove command before executing the vgreduce command.
To remove physical volume hdisk1 from volume group vg01, enter: vgreduce /dev/vg01 /dev/hdisk1 The physical volume hdisk1 no longer belongs to volume group vg01.
To remove physical volume rz1c from volume group vg01, enter: vgreduce /dev/vg01 /dev/rz1c The physical volume rz1c no longer belongs to volume group vg01.
Commands: lvremove(8), vgchange(8), vgcreate(8), vgdisplay(8), vgextend(8) delim off