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vgscan(8) [redhat 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)

Check Out this Related Man Page

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

NAME
vgdisplay - display attributes of volume groups SYNOPSIS
vgdisplay [-A|--activevolumegroups] [-c|--colon] [-d|--debug] [-D|--disk] [-h|--help] [-s|--short] [-v[v]|--verbose [--verbose]] [--ver- sion] [VolumeGroupName...] DESCRIPTION
vgdisplay allows you to see the attributes of VolumeGroupName (or all volume groups if none is given) with it's physical and logical vol- umes and their sizes etc. OPTIONS -A, --activevolumegroups Only select the active volume groups. -c, --colon Generate colon seperated output for easier parsing in scripts or programs. The values are: 1 volume group name 2 volume group access 3 volume group status 4 internal volume group number 5 maximum number of logical volumes 6 current number of logical volumes 7 open count of all logical volumes in this volume group 8 maximum logical volume size 9 maximum number of physical volumes 10 current number of physical volumes 11 actual number of physical volumes 12 size of volume group in kilobytes 13 physical extent size 14 total number of physical extents for this volume group 15 allocated number of physical extents for this volume group 16 free number of physical extents for this volume group 17 uuid of volume group -d, --debug Enables additional debugging output (if compiled with DEBUG). -D, --disk Show attributes from the volume group descriptor area on disk(s). Without this switch they are shown from the kernel. Useful if the volume group isn't activated. -h, --help Print a usage message on standard output and exit successfully. -s, --short Give a short listing showing the existence of volume groups. -v, --verbose Display verbose information containing long listings of physical and logical volumes. If given twice, also display verbose runtime information of vgdisplay's activities. --version Display version and exit successfully. DIAGNOSTICS
vgdisplay returns an exit code of 0 for success and > 0 for error: 1 error reading VGDA 2 volume group doesn't exist 3 not all physical volumes of volume group online 4 volume group not found 5 no volume groups found at all 6 error reading VGDA from lvmtab 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), vgcreate(8), lvcreate(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS VGDISPLAY(8)

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