On Wed, 1 Sep 2010, Mr. MailingLists wrote:

> Yaron, we often do "Online Resizing" to grow our LVs live and in 
> production, which are ext3fs. I believe the Linux kernel was patched to 
> allow online resizing, when and where I am unsure, but it is perfectly 
> safe on recent distros. At least version >= Ubuntu 8.04 works well.

Oh I know it works, heck, it worked, no problem. I mean it was a BIT 
scary, but it's always gonna be scary messing with filesystems.

I'm also wondering if doing it offline would've been faster.

-Yaron

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