[linux-lvm] How to increase/decrease space

Gonyou, Austin austin at coremetrics.com
Thu Dec 16 03:01:26 UTC 2004

That only increases the device size, you also need to extend the partition
onto that larger device. e2fsadm will do it or you can fdisk it to the
larger size. (mind you this involves deleting and recreating the partition
in-memory not on disk, unless you make a mistake and do d 1 w, instead of d
1, then n p 1 <return><return><return>)

Anyhow, you really should look into extending the partition/LV itself now,
depending if you partitioned or not, or used an invalid extent specification


-----Original Message-----
From: AdabalaP at schneider.com
To: LVM general discussion and development
Sent: 12/15/2004 8:15 PM
Subject: Re: [linux-lvm] How to increase/decrease space

"lvextend"  did not help. 


My file system type is "ext3".


Here is output:

#df -m


/dev/mapper/VolGroup00-LogVol04    1985   1728   156    92%   /usr



#lvdisplay   VolGroup00/LogVol04


LV Size    2.45 GB




I did the following on /opt file system for testing, the results were
the same the filesystem did not get increased.


#umount /opt

#lvresize  -L +64 VolGroup00/LogVol07

#lvextend -L +64 VolGroup00/LogVol07


Any suggessions.




Jason Martin <jhmartin at toger.us>
Sent by: linux-lvm-bounces at redhat.com
12/15/2004 10:15 AM PST
Please respond to LVM general discussion and development

To: linux-lvm at redhat.com
Subject: Re: [linux-lvm] How to increase/decrease space

On Wed, Dec 15, 2004 at 12:11:30PM -0600, AdabalaP at schneider.com wrote:
> (1) Added more space (350 meg) to /usr using the command "lvresize
> When i display the volume group using "lvdisplay" it shows 2.3 gb, But
> i use "df -m" it is still at 1.9 gb and 92% used state.
You've resized the volume but not the filesystem sitting on top
of it. Some filesystems can be resized online while others must
be unmounted. Some may not be resizable at all.

See http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html
<http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html> .

-Jason Martin
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