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lvextend(8) [redhat man page]

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

NAME
lvextend - extend the size of a logical volume SYNOPSIS
lvextend [-A|--autobackup {y|n}] [-d|--debug] [-h|--help] {-l|--extents [+]LogicalExtentsNumber| -L|--size [+]LogicalVolumeSize[kKmMgGtT]} [-v|--verbose] LogicalVolumePath [PhysicalVolumePath...] DESCRIPTION
lvextend allows you to extend the size of a logical volume. Extension of snapshot logical volumes (see lvcreate(8) for information to cre- ate snapshots) is supprted as well. OPTIONS -A, --autobackup y/n Controls automatic backup of VG metadata after the change ( see vgcfgbackup(8) ). Default is yes. -d, --debug Enables additional debugging output (if compiled with DEBUG). -h, --help Print a usage message on standard output and exit successfully. -l, --extents [+]LogicalExtentsNumber Extend or set the logical volume size in units of logical extents. With the + sign the value is added to the actual size of the logical volume and without it, the value is taken as an absolute one. -L, --size [+]LogicalVolumeSize[kKmMgGtT] Extend or set the logical volume size in units in units of megabytes. A size suffix of M for megabytes, G for gigabytes or T for terabytes is optional. With the + sign the value is added to the actual size of the logical volume and without it, the value is taken as an absolute one. -v, --verbose Gives verbose runtime information about lvextend's activities. Examples "lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3" tries to extend the size of that logical volume by 54MB on physical volume /dev/sdk3. This is only possible if /dev/sdk3 is a member of volume group vg01 and there are enough free physical extents in it. DIAGNOSTICS
lvextend returns an exit code of 0 for success or > 0 for error: 1 no logical volume name on command line 2 invalid physical volume name on command line 3 invalid logical volume name 4 error checking existence of logical volume 5 logical volume not active 6 error reading VGDA 7 requested physical volume not in this volume group 8 error getting index of logical volume 9 logical volume size not bigger than before 10 logical volume size exceeds volume group free capacity 11 logical volume size exceeds maximum 12 error setting up VGDA for logical volume extension 13 error extending VGDA for logical volume in kernel 14 error writing VGDA to physical volume(s) 15 error getting index for read/write statistics transfer 16 error getting status of logical volume from kernel 17 error setting up copy on write exception table 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 ENVIRONMENT VARIABLES
LVM_AUTOBACKUP If this variable is set to "no" then the automatic backup of VG metadata is turned off. LVM_VG_MAX_BACKUPS This variable determines the backup history depth of kept VGDA copy files in /etc/lvmconf. It can be set to a positive number between 0 and 999. The higher this number is, the more changes you can restore using vgcfgrestore(8). LVM_VG_NAME The default Volume Group Name to use. Setting this variable enables you to enter just the Logical Volume Name rather than its com- plete path. See also lvm(8), lvcreate(8), lvreduce(8), lvchange(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS LVEXTEND(8)

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

NAME
lvextend - extend the size of a logical volume SYNOPSIS
lvextend [--alloc AllocationPolicy] [-A|--autobackup y|n] [-d|--debug] [-h|-?|--help] [--noudevsync] [-i|--stripes Stripes [-I|--stripesize StripeSize]] {-l|--extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size [+]LogicalVolumeSize[bBsSkKmMgGtTpPeE]} [-f|--force] [-n|--nofsck] [-r|--resizefs] [-t|--test] [-v|--verbose] LogicalVolumePath [PhysicalVolumePath[:PE[-PE]]...] DESCRIPTION
lvextend allows you to extend the size of a logical volume. Extension of snapshot logical volumes (see lvcreate(8) for information to cre- ate snapshots) is supported as well. But to change the number of copies in a mirrored logical volume use lvconvert(8). OPTIONS
See lvm for common options. --noudevsync Disable udev synchronisation. The process will not wait for notification from udev. It will continue irrespective of any possible udev processing in the background. You should only use this if udev is not running or has rules that ignore the devices LVM2 cre- ates. -l, --extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}] Extend or set the logical volume size in units of logical extents. With the + sign the value is added to the actual size of the logical volume and without it, the value is taken as an absolute one. The number can also be expressed as a percentage of the total space in the Volume Group with the suffix %VG, relative to the existing size of the Logical Volume with the suffix %LV, of the remaining free space for the specified PhysicalVolume(s) with the suffix %PVS, as a percentage of the remaining free space in the Volume Group with the suffix %FREE, or (for a snapshot) as a percentage of the total space in the Origin Logical Volume with the suffix %ORIGIN. The resulting value is rounded upward. -L, --size [+]LogicalVolumeSize[bBsSkKmMgGtTpPeE] Extend or set the logical volume size in units of megabytes. A size suffix of M for megabytes, G for gigabytes, T for terabytes, P for petabytes or E for exabytes is optional. With the + sign the value is added to the actual size of the logical volume and with- out it, the value is taken as an absolute one. -i, --stripes Stripes Gives the number of stripes for the extension. Not applicable to LVs using the original metadata LVM format, which must use a sin- gle value throughout. -I, --stripesize StripeSize Gives the number of kilobytes for the granularity of the stripes. Not applicable to LVs using the original metadata LVM format, which must use a single value throughout. StripeSize must be 2^n (n = 2 to 9) -f, --force Proceed with size extension without prompting. -n, --nofsck Do not perform fsck before extending filesystem when filesystem requires it. You may need to use --force to proceed with this option. -r, --resizefs Resize underlying filesystem together with the logical volume using fsadm(8). Examples "lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3" tries to extend the size of that logical volume by 54MB on physical volume /dev/sdk3. This is only possible if /dev/sdk3 is a member of volume group vg01 and there are enough free physical extents in it. "lvextend /dev/vg01/lvol01 /dev/sdk3" tries to extend the size of that logical volume by the amount of free space on physical volume /dev/sdk3. This is equivalent to specifying "-l +100%PVS" on the command line. "lvextend -L+16M vg01/lvol01 /dev/sda:8-9 /dev/sdb:8-9" tries to extend a logical volume "vg01/lvol01" by 16MB using physical extents /dev/sda:8-9 and /dev/sdb:8-9 for allocation of extents. SEE ALSO
fsadm(8), lvm(8), lvcreate(8), lvconvert(8), lvreduce(8), lvresize(8), lvchange(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) LVEXTEND(8)
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