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jadupl2 11-11-2004 09:28 PM

Increase EXT3 Filesystem size in a LVM?
 
I have really sad that RedHat have not yet developed an utility to increase the size of an ext3 filesystem that is created in a LVM (Logical Volume).

I am a Sysadmin (AIX), moving to Some system to Linux.

On SuSE you can enlarge a filesystem (Reiserfs, XFS)while it is MOUNTED.

In a production this is really important.

Having to shut database down to increase the size of a Filesystem is a BIG OUTAGE.

When RedHat is going to understand that WE NEED to ENLARGE EXT3 FILESYSTEM WHILE THEY ARE MOUNTED (In a Volume Group - LVM) ?

jadupl2 11-11-2004 09:38 PM

Anybody know a way to enlarge a filesystem ext3 without having to unmounted when they space in the volume group (in a LVM env) ?
Like we can do with all others JFS, REISERSFS and XFS.

hkb33 11-14-2004 12:16 AM

I think LVM2 (in Fedora and, soon, RHEL 4) will let you do this using lvextend and ext2online.....ext2online is currently in Fedora Core and so is LVM2.

http://www.tldp.org/HOWTO/LVM-HOWTO/extendlv.html

...so, yes, Red Hat understands and is working on a solution for this problem.

jadupl2 11-14-2004 08:40 PM

You are right my friend - At last !
I just install Fedora Core 3 and I tested it and it works !

In Fedora Core 3, we can now increase a filesystem on line WITHOUT umounting it.

Hopefully Red Hat will include it in Red Hat Enterprise 4.0

# mount -t ext3 /dev/rootvg/test /test

# df -k /test
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/rootvg-test
63461 5403 54782 9% /test

# lvextend -L+64M /dev/rootvg/test
Extending logical volume test to 128.00 MB
Logical volume test successfully resized

# ext2online /dev/rootvg/test
ext2online v1.1.18 - 2001/03/18 for EXT2FS 0.5b

# df -k /test
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/rootvg-test
126931 5658 114725 5% /test
#


Thank You !




;)


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