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From: | Philip Rowlands |
Subject: | Re: about df and lvm |
Date: | Tue, 4 Dec 2007 13:32:22 +0000 (GMT) |
On Tue, 4 Dec 2007, tq01azk wrote:
test environment: centos 4.4 Linux localhost.localdomain 2.6.9-55.0.12.ELsmp #1 SMP Fri Nov 2 11:19:08 EDT 2007 i686 i686 i386 GNU/Linux lvm> version LVM version: 2.02.21-RHEL4 (2007-03-26) Library version: 1.02.17-RHEL4 (2007-04-24) Driver version: 4.5.5 I creat 4G of size lvm partition. #df -h /dev/mapper/lvtest-lv 4.0G 2.6G 1.3G 68% /mnt/lv
[snip]
then I use the command "lvextend" to add 800M capatity into the lvm. but i also see the capatity is 4G by using df,lvdisplay show right information #lvextend -L +800M /dev/lvtest/lv Extending logical volume lv to 4.88 GB Logical volume lv successfully resized #df -h /dev/mapper/lvtest-lv 4.0G 2.6G 1.3G 68% /mnt/lv
Does lvextend affect the logical volume ("partition") size or the mounted filesystem? I think you'll need to run e2extend or other fs-specific tool to expand the filesystem structures, which is what df is reporting.
Cheers, Phil
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