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Operating Systems HP-UX How to resize a logical volume to free up some space using sam? Post 69545 by Kelam_Magnus on Friday 15th of April 2005 02:08:16 PM
Old 04-15-2005
Reducing a filesystem or/and Lvol, is not really advised as a good practice. It is possible if you can defrag the filesystem, but again that is not recommended.

My best suggestion is to backup the data or move it to another location... then destroy the Lvol and recreate it.

Or as I have done in the past... create a totally new filesytem, move all the directories and data... then reclaim the original filesystem.


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It can be done as follows, but again I dont recommend this procedure.

# fsadm -b "new_size_in_mb" /mountpoint
# lvreduce -L "new_size_in_mb /dev/vg01/lvol1
 

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

NAME
pvdisplay - display attributes of a physical volume SYNOPSIS
pvdisplay [-c|--colon] [-d|--debug] [-h|-?|--help] [-s|--short] [-v[v]|--verbose [--verbose]] PhysicalVolumePath [PhysicalVolumePath...] DESCRIPTION
pvdisplay allows you to see the attributes of one or more physical volumes like size, physical extent size, space used for the volume group descriptor area and so on. pvs (8) is an alternative that provides the same information in the style of ps (1). OPTIONS
See lvm for common options. -c, --colon Generate colon separated output for easier parsing in scripts or programs. N.B. pvs (8) provides considerably more control over the output. The values are: * physical volume device name * volume group name * physical volume size in kilobytes * internal physical volume number (obsolete) * physical volume status * physical volume (not) allocatable * current number of logical volumes on this physical volume * physical extent size in kilobytes * total number of physical extents * free number of physical extents * allocated number of physical extents -s, --short Only display the size of the given physical volumes. -m, --maps Display the mapping of physical extents to logical volumes and logical extents. SEE ALSO
lvm(8), pvcreate(8), lvcreate(8), vgcreate(8) Sistina Software UK LVM TOOLS 2.02.44-cvs (02-17-09) PVDISPLAY(8)
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