Resize A Mounted EXT3 File System

v=/dev/vg0/lv0; lvextend -L+200G $v && resize2fs $v
Live extension of an ext3 file system on logical volume $v by 200GB without the need to unmount/remount. Requires that you have 1) a version of resize2fs that contains code merged from ext2online, and 2) kernel support for online resizing. (e.g. RHEL 5)

4
By: wwest4
2009-02-28 02:30:49

What Others Think

Here's a writeup I did on a more complicated version of this, including moving to a RAID 1 array: http://www.hollenback.net/index.php/RaidLvmMigrate thanks also for noting you need CentOS 5 to do online resizing. CentOS 4 doesn't do online ext3 resizing, you have to unmount the filesystem first.
philiph · 507 weeks and 3 days ago

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Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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