Section 8: administration and privileged commands
vgimportclone – Import a VG from cloned PVs Synopsis vgimportclone position_args [ option_args ] Description vgimportclone imports a VG from duplicated PVs, e.g. created by a hardware snapshot of existing PVs. A duplicated VG cannot used until it is made to coexist with the original VG. vgimportclone renames the VG associated with the specified PVs and changes…
vgimport – Register exported volume group with system Synopsis vgimport option_args position_args [ option_args ] Description vgimport makes exported VGs known to the system again, perhaps after moving the PVs from a different system. vgexport clears the VG system ID, and vgimport sets the VG system ID to match the host running vgimport (if the host has…
vgextend – Add physical volumes to a volume group Synopsis vgextend position_args [ option_args ] Description vgextend adds one or more PVs to a VG. This increases the space available for LVs in the VG. Also, PVs that have gone missing and then returned, e.g. due to a transient device failure, can be added back to the…
vgexport – Unregister volume group(s) from the system Synopsis vgexport option_args position_args [ option_args ] Description vgexport changes a VG into the exported state, which ensures that the VG and its disks are not being used, and cannot be used until the VG is imported by vgimport(8). Putting a VG into an unusable, offline state can be…
vgetty – voice extension to the mgetty+sendfax program Synopsis vgetty [options] ttydevice vgetty is not meant to be run from the command line. Systems with SysV initscripts should start vgetty from the /etc/inittab file so it can respawn after each call. Here is a typical inittab entry: S0:345:respawn:/usr/local/sbin/vgetty ttyS0 If you already have a line…
vgdisplay – Display volume group information Synopsis vgdisplay [ option_args ] [ position_args ] Description vgdisplay shows the attributes of VGs, and the associated PVs and LVs. vgs(8) is a preferred alternative that shows the same information and more, using a more compact and configurable output format. Usage vgdisplay [ -A|–activevolumegroups ] [ -c|–colon ] [ -C|–columns ] […
vgcreate – Create a volume group Synopsis vgcreate position_args [ option_args ] Description vgcreate creates a new VG on block devices. If the devices were not previously intialized as PVs with pvcreate(8), vgcreate will inititialize them, making them PVs. The pvcreate options for initializing devices are also available with vgcreate. When vgcreate uses an existing PV, that…
vgconvert – Change volume group metadata format Synopsis vgconvert position_args [ option_args ] Description vgconvert is no longer a part of LVM. It was removed along with support for the LVM1 format. Use an older version of LVM to convert VGs from the LVM1 format to LVM2. Usage vgconvert VG … [ -f|–force ] [ -M|–metadatatype lvm2…
vgck – Check the consistency of volume group(s) Synopsis vgck option_args position_args [ option_args ] [ position_args ] Description vgck checks LVM metadata for consistency. Usage Read and display information about a VG. vgck [ –reportformat basic|json ] [ COMMON_OPTIONS ] [ VG|Tag … ] Rewrite VG metadata to correct problems. vgck –updatemetadata VG [ COMMON_OPTIONS ] Common options…
vgchange – Change volume group attributes Synopsis vgchange option_args position_args [ option_args ] [ position_args ] -a|–activate y|n|ay –activationmode partial|degraded|complete –addtag Tag –alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit -A|–autobackup y|n –commandprofile String –config String -d|–debug –deltag Tag –detachprofile –driverloaded y|n -f|–force -h|–help -K|–ignoreactivationskip –ignorelockingfailure –ignoremonitoring –lockopt String –lockstart –lockstop –locktype sanlock|dlm|none -l|–logicalvolume Number –longhelp -p|–maxphysicalvolumes Number –metadataprofile String –monitor y|n –nolocking –noudevsync -P|–partial -s|–physicalextentsize Size[m|UNIT] –poll y|n –profile String –pvmetadatacopies 0|1|2 -q|–quiet –readonly –refresh –reportformat basic|json -x|–resizeable y|n -S|–select String –sysinit –systemid String -t|–test -u|–uuid -v|–verbose…
vgcfgrestore – Restore volume group configuration Synopsis vgcfgrestore option_args position_args [ option_args ] [ position_args ] –commandprofile String –config String -d|–debug –driverloaded y|n -f|–file String –force -h|–help -l|–list –lockopt String –longhelp -M|–metadatatype lvm2 –nolocking –profile String -q|–quiet -t|–test -v|–verbose –version -y|–yes Description vgcfgrestore restores the metadata of a VG from a text back up file produced by vgcfgbackup. This writes VG metadata onto the devices specifed…
vgcfgbackup – Backup volume group configuration(s) Synopsis vgcfgbackup [ option_args ] [ position_args ] Description vgcfgbackup creates back up files containing metadata of VGs. If no VGs are named, back up files are created for all VGs. See vgcfgrestore for information on using the back up files. In a default installation, each VG is backed up into a separate…
vga_reset – reset video graphic board Synopsis vga_reset Description Call real mode c000:0003, which should be the video card’s initialization routine. Should work in some cases when mode3 fails to restore text mode. Bugs Using this program is unsafe, and might (depending on the bios) result in a video card in a state that requires…
vfs_xattr_tdb – Save Extended Attributes (EAs) in a tdb file Synopsis vfs objects = xattr_tdb Description This VFS module is part of the samba(7) suite. The vfs_xattr_tdb VFS module stores Extended Attributes (EAs) in a tdb file. This enables the usage of Extended Attributes on OS and filesystems which do not support Extended Attributes by…
vfs_worm – disallows writes for older file Synopsis vfs objects = worm Description This VFS module is part of the samba(7) suite. The vfs_worm module controls the writability of files and folders depending on their change time and a adjustable grace period. If the change time of a file or directory is older than the…
vfs_unityed_media – Allow multiple Avid clients to share a network drive. Synopsis vfs objects = unityed_media Description This VFS module is part of the samba(7) suite. Unityed Media is related with Media Harmony VFS, the main difference between Unityed Media and Media Harmony is that Unityed Media doesn’t need manual refreshing of media directories. Unityed…
vfs_tsmsm – VFS module for handling offline files with Tivoli Storage Manager Space Management Synopsis vfs objects = tsmsm Description This VFS module is part of the samba(7) suite. The tsmsm VFS module is an extension for handling offline files with Tivoli Storage Manager Space Management. It tries to avoid calling expensive DMAPI calls with…
vfs_time_audit – samba vfs module to log slow VFS operations Synopsis vfs objects = time_audit Description This VFS module is part of the samba(7) suite. The time_audit VFS module logs system calls that take longer than the number of milliseconds defined by the variable time_audit:timeout. It will log the calls and the time spent in…
vfs_syncops – Ensure meta data operations are performed synchronously. Synopsis vfs objects = syncops Description This VFS module is part of the samba(7) suite. Some filesystems (even some journaled filesystems) require that a fsync() be performed on many meta data operations to ensure that the operation is guaranteed to remain in the filesystem after a…
vfs_streams_xattr – Store alternate data streams in posix xattrs Synopsis vfs objects = streams_xattr Description This VFS module is part of the samba(7) suite. The vfs_streams_xattr enables storing of NTFS alternate data streams in the file system. As a normal posix file system does not support the concept of multiple data streams per file, the…