Re: resize online with ext3?

Steinar H. Gunderson wrote:
> On Fri, Dec 29, 2006 at 06:42:30PM -0500, Theodore Tso wrote:
>> Ext3 does support on-line resizing, although you do need to make sure
>> you created the filesystem with -O resize_inode (this is the default
>> in the latest e2fsprogs, but may not be for your distribution-provided
>> version of mke2fs).    
> 
> Theodore, since you probably know this from at least one side of the
> equation; how difficult do you think it would be to simply fix this in the
> ext2 EVMS plugin? In other words, how much work is there to
> 
>   a) Determine if a file system is online resizeable, and
>   b) Resize it using the right ioctls
> 
> Actually, b) could probably simply be handled by calling resize2fs like with
> offline resizing, but I'm not sure how one could detect if the user had a
> version capable of doing online resizing.
> 
> /* Steinar */

Scuse me for the newbie question but...why with reiserfs I can do online 
resizing without any problems while with ext3 I can't?

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