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Full Discussion: Unable to reduce the size of volume group?
Top Forums UNIX for Dummies Questions & Answers Unable to reduce the size of volume group? Post 302587016 by pinga123 on Wednesday 4th of January 2012 01:45:54 AM
Old 01-04-2012
Unable to reduce the size of volume group?
My volume group of size 200 gb.

out of which only 100 gb is used by 2 logical volumes /dev/vg00/lvol0 and /dev/vg00/lvol0 respectively (both are 50 gb each).

Whenever i use vgreduce command to reduce the size of volume group i get below error.
Code:
# vgreduce vg00 -a
  Physical volume "/dev/xvdb5" still in use

How can i reduce the volume group size to free up 100 gb?


Code:
# lvdisplay
  --- Logical volume ---
  LV Name                /dev/vg00/lvol0
  VG Name                vg00
  LV UUID                tji5FT-GuoG-jfLN-2KXg-Ra0a-6SQA-4RR4r7
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                50.00 GB
  Current LE             12800
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0

  --- Logical volume ---
  LV Name                /dev/vg00/lvol1
  VG Name                vg00
  LV UUID                xdqsuf-jl1U-TY1h-0fIa-kywO-I6fu-7UVSHB
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                50.00 GB
  Current LE             12800
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1

vgdisplay

Code:
# vgdisplay
  --- Volume group ---
  VG Name               vg00
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  5
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               200.00 GB
  PE Size               4.00 MB
  Total PE              51199
  Alloc PE / Size       25600 / 100.00 GB
  Free  PE / Size       25599 / 100.00 GB
  VG UUID               NL5ws1-uaxQ-Wmtm-75GZ-WnQX-S7Vd-XeHJuS

pvs

Code:
# pvs   
PV         VG   Fmt  Attr PSize   PFree   
/dev/xvdb5 vg00 lvm2 a-   200.00G 100.00G

Last edited by pinga123; 01-04-2012 at 03:18 AM..
 

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LEARN ABOUT SUSE

lvremove

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] [--noudevsync] [-t|--test] [-v|--verbose] LogicalVolumePath [Logi-
       calVolumePath...]

DESCRIPTION

       lvremove removes one or more logical volumes.  Confirmation will be requested before  deactivating  any	active	logical  volume  prior	to
       removal.   Logical  volumes  cannot be deactivated or removed while they are open (e.g. if they contain a mounted filesystem).  Removing an
       origin logical volume will also remove all dependent snapshots.

       If the logical volume is clustered then it must be deactivated on all nodes in the cluster before it can be removed. A single lvchange com-
       mand issued from one node can do this.

OPTIONS

       See lvm(8) for common options.

       -f, --force
	      Remove active logical volumes without confirmation.

       --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.

EXAMPLES

       Remove the active logical volume lvol1 in volume group vg00 without asking for confirmation:

	    lvremove -f vg00/lvol1

       Remove all logical volumes in volume group vg00:

	    lvremove vg00

SEE ALSO

       lvcreate(8), lvdisplay(8), lvchange(8), lvm(8), lvs(8), lvscan(8), vgremove(8)

Sistina Software UK					 LVM TOOLS 2.02.67(2) (2010-06-04)					       LVREMOVE(8)
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