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Operating Systems Linux Red Hat How to reduce the LVM Size in RHEL/Centos 7 ? Post 302980206 by joeyg on Thursday 25th of August 2016 08:38:40 AM
Old 08-25-2016
What I recall...

I seem to recall, when faced with a similar situation, that I had to start fresh.

backup the data
remove logical volume (which removes the data)
rebuild (to new size) the logical volume
restore the data
 

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

NAME
lvremove - remove a logical volume SYNOPSIS
lvremove [-A|--autobackup {y|n}] [-d|--debug] [-f|--force] [-h|--help] [-v|--verbose] LogicalVolumePath [LogicalVolumePath...] DESCRIPTION
lvremove allows you to remove one or more inactive logical volumes. 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). -f, --force Force remove without confirmation. -h, --help Print a usage message on standard output and exit successfully. -v, --verbose Gives verbose runtime information about lvremove's activities. Example "lvremove -f /dev/vg00/lvol1" removes that inactive logical volume unconditionally. DIAGNOSTICS
lvremove returns an exit code of 0 for success and > 0 for error: 1 no logical volume name on command line 2 invalid logical volume name 3 error checking existence of volume group 4 inactive volume group 5 error getting VGDA from kernel 6 error getting status of logical volume from kernel 7 open logical volume cannot be removed 8 error reading VGDA 9 error removing logical volume from VGDA 10 error removing logical volume from kernel 11 error writing VGDA to physical volume(s) 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), lvdisplay(8), lvscan(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS LVREMOVE(8)
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