vgcreate(1M)

The block device path name of a physical volume that will be assigned to the new volume group.

On PA-RISC systems, pv_path should be the path name for the whole disk. For Itanium(R)-based system boot physical volumes, pv_path should be the path name for the disk section containing the HP-UX partition (see model(1) and getconf(1)). For Itanium-based system non-boot physical volumes, pv_path can be the path name for the whole disk or the disk section containing the HP-UX partition.

You can specify physical volume links pv-links for a physical volume providing different paths that reference the same physical volume in the pv_path list. The order in which the paths are listed is important. The first path becomes the primary link to the physical volume, and the second becomes an alternate link to the physical volume. The primary link is the default path used to access the physical volume. (see WARNINGS section). If the primary link becomes unavailable, LVM automatically switches to the alternate link to access the physical volume. Currently, LVM supports a maximum of 8 paths to a physical volume (7 alternate and one primary).

The path name of a subdirectory of the /dev directory. vg_name must be empty except for a character special file named group. Typically, this directory name is in the form /dev/vgNN, where NN numbers sequentially from 00.

Set automatic backup for this invocation of this command. autobackup can have one of the following values:

Set the maximum number of physical extents that can be allocated from any of the physical volumes in the volume group. The default value for max_pe is 1016. However, if the size of any physical volume exceeds 1016 times the pe_size, the default value for max_pe is adjusted to match the physical volume size. The maximum number of physical extents can be a value in the range 1 to 65535.

This option will force a volume group to be created with a physical volume which has alternate block(s) already allocated, (that is, this physical volume was not initialized using pvcreate -f.) This option should be used with extreme caution. If the volume group to be created has a different physical extent size, the alternate block(s) might be inside the user data area. Potential data corruption could occur.

Create a new physical volume group with the name pvg_name. All physical volumes specified in the pv_path parameter become a member of the newly created physical volume group.

The physical volume group information is stored in an ASCII file, /etc/lvmpvg. The file can be edited to create a physical volume group instead of using the vgcreate command. However, ensure that the physical volumes to be used have already been installed in the volume group prior to creating the physical volume group.

The physical volume group name must be unique within a volume group although identical physical volume group names can appear in different volume groups (see lvmpvg(4) for format details).

Set the maximum number of logical volumes that the volume group is allowed to contain. The default value for max_lv is 255. The maximum number of logical volumes can be a value in the range 1 to 255.

Set the maximum number of physical volumes that the volume group is allowed to contain. The default value for max_pv is 16. The maximum number of physical volumes can be a value in the range 1 to 255.

Sets the number of megabytes in each physical extent, where pe_size is expressed in units of megabytes (MB) in the range 1 to 256. pe_size must be equal to a power of 2 (1, 2, 4, 8, etc.). The default value for pe_size is 4 (four megabytes).

Set the allocation permission for adding physical extents on the physical volumes specified by the pv_path parameter. extensibility can have one of the following values: