Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #892
Difficulty: Medium
sed scripts cannot have comments.
True or False?
Linux & Unix Commands - Search Man Pages

vgscan(8) [bsd man page]

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

NAME
       vgscan - scan all disks for volume groups and rebuild caches

SYNOPSIS
       vgscan [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--mknodes] [-P|--partial] [-v|--verbose]

DESCRIPTION
       vgscan  scans all SCSI, (E)IDE disks, multiple devices and a bunch of other disk devices in the system looking for LVM physical volumes and
       volume groups.  Define a filter in lvm.conf(5) to restrict the scan to avoid a CD ROM, for example.

       In LVM2, vgscans take place automatically; but you might still need to run one explicitly after changing hardware.

OPTIONS
       See lvm for common options.

       --mknodes
	      Also checks the LVM special files in /dev that are needed for active logical volumes and creates any missing ones and removes unused
	      ones.

SEE ALSO
       lvm(8), vgcreate(8), vgchange(8)

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)						 VGSCAN(8)

Check Out this Related Man Page

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

NAME
vgscan - scan all disks for volume groups and build /etc/lvmtab and /etc/lvmtab.d/* which are the database for all other lvm commands. SYNOPSIS
vgscan [-d|--debug] [-f|--forcenumbers] [-h|--help] [-r|--remove_snapshots [VolumeGroupName]] [-v|--verbose] DESCRIPTION
vgscan scans all SCSI, (E)IDE disks, multiple devices and a bunch of other disk devives in the system for volume groups defined. OPTIONS -d, --debug Enables additional debugging output (if compiled with DEBUG). -f, --forcenumbers If used volume group and/or logical volume minor numbers are found during scan, replace them. This will potentially cause problems for NFS exported filesystems on logical volumes with changed numbers. -h, --help Print a usage message on standard output and exit successfully. -r, --remove_snapshots [VolumeGroupName] Remove all snapshot logical volumes from all or just the named volume group. -v, --verbose Display verbose information of vgscan's activities. Hint Put vgscan in one of your system startup scripts. This gives you an actual logical volume manager database before activating all volume groups by doing a "vgchange -ay". DIAGNOSTICS
vgscan returns an exit code of 0 for success and > 0 for error: 1 error reading physical volumes 2 error inserting vokume group name into lvmtab 3 no volume group(s) found 4 error creating lvmtab 5 no or not enough free device specials to store volume group in lvmtab 6 error storing VGDA on disk(s) 7 reused LV device number 8 error releasing snapshot logical volume 95 driver/module not in kernel 96 invalid I/O protocol version 97 error locking logical volume manager 99 invalid command line See also lvm(8), vgcreate(8), vgchange(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS VGSCAN(8)

Featured Tech Videos