lvmdiskscan(8) [redhat man page]

LVMDISKSCAN(8)						      System Manager's Manual						    LVMDISKSCAN(8)

NAME

       lvmdiskscan - scan for all disks / multiple devices / partitions available

SYNOPSIS

       lvmdiskscan [-d|--debug] [-h|--help] [-l|--lvmpartitions] [-v|--verbose]

DESCRIPTION

       To  give  an  overview  about  online peripherals usable to LVM, lvmdiskscan scans all SCSI, (E)IDE disks, multiple, loop and network block
       devices in the system and lists them on standard output with name, size and type (text/hex). The size is the real device size, not the size
       stored in the VGDA (See pvcreate(8) ) for details.

   OPTIONS
       -d/--debug
	      Enables additional debugging output (if compiled with DEBUG).

       -h, --help
	      Print a usage message on standard output and exit successfully.

       -l, --lvmpartition
	      Gives an overview about all LVM system identified partitions only.

       -v, --verbose
	      Gives verbose runtime information about lvmdiskscan's activities.

DIAGNOSTICS

       lvmdiskscan returns an exit code of 0, if disks / multiple devices / partitions where found and > 0 for error:

       1  no special files found
       2  no disks / multiple devices / disk partitions found

       95 driver/module not in kernel
       96 invalid I/O protocol version
       97 error locking logical volume manager
       98 invalid lvmtab (run vgscan(8))
       99 invalid command line

See also
       lvm(8), pvcreate(8), pvdisplay(8), pvscan(8)

AUTHOR

       Heinz Mauelshagen <Linux-LVM@Sistina.com>

Heinz Mauelshagen						     LVM TOOLS							    LVMDISKSCAN(8)

PVCREATE(8)						      System Manager's Manual						       PVCREATE(8)

NAME

       pvcreate - initialize a disk or partition for use by LVM

SYNOPSIS

       pvcreate [-d|--debug] [-f[f]|--force [--force]] [-y|--yes] [-h|--help] [-v|--verbose] [-V|--version] PhysicalVolume [PhysicalVolume...]

DESCRIPTION

       pvcreate  initializes PhysicalVolume for later use by the Logical Volume Manager (LVM).	Each PhysicalVolume can be a disk partition, whole
       disk, meta device, or loopback file.  For DOS disk partitions, the partition id must be set to 0x8e using fdisk(8), cfdisk(8), or a equiva-
       lent.   For  whole disk devices only the partition table must be erased, which will effectively destroy all data on that disk.  This can be
       done by zeroing the first sector with:

       dd if=/dev/zero of=PhysicalVolume bs=512 count=1

       Continue with vgcreate(8) to create a new volume group on PhysicalVolume, or vgextend(8) to add PhysicalVolume to an existing volume group.

   OPTIONS
       -d, --debug
	      Enables additional debugging output (if compiled with DEBUG).

       -f, --force
	      Force the creation without any confirmation.  You can not recreate (reinitialize) a physical volume belonging to an existing  volume
	      group.  In an emergency you can override this behaviour with -ff.  In no case case can you initialize an active physical volume with
	      this command.

       -s, --size
	      Overrides the size of the physical volume which is normally retrieved.  Useful in rare case where this value is wrong.  More  useful
	      to fake large physical volumes of up to 2 Terabyes - 1 Kilobyte on smaller devices for testing purposes only where no real access to
	      data in created logical volumes is needed.  If you wish to create the supported maximum, use "pvcreate -s 2147483647k PhysicalVolume
	      [PhysicalVolume ...]".  All other LVM tools will use this size with the exception of lvmdiskscan(8)

       -y, --yes
	      Answer yes to all questions.

       -h, --help
	      Print a usage message on standard output and exit successfully.

       -v, --verbose
	      Gives verbose runtime information about pvcreate's activities.

       -V, --version
	      Print the version number on standard output and exit successfully.

Example
       Initialize partition #4 on the third SCSI disk and the entire fifth SCSI disk for later use by LVM:

       pvcreate /dev/sdc4 /dev/sde

DIAGNOSTICS

       pvcreate returns an exit code of 0 for success or > 0 for error:

       1  no physical volume on command line
       2  error removing existing lvmtab entry for new physical volume
       3  error setting up physical volume structure
       4  error writing physical volume structure to disk
       5  wrong partition type identifier
       6  error physical volume name
       7  error getting size of physical volume

       95 driver/module not in kernel
       96 invalid I/O protocol version
       97 error locking logical volume manager
       98 invalid lvmtab (run vgscan(8))
       99 invalid command line

SEE ALSO

       lvm(8), vgcreate(8), vgextend(8), lvcreate(8), cfdisk(8), fdisk(8), losetup(8), mdadd(8)

AUTHOR

       Heinz Mauelshagen <Linux-LVM@Sistina.com>

Heinz Mauelshagen						     LVM TOOLS							       PVCREATE(8)