Re: [gentoo-user] Gentoo LVM Newbie Question

[Alexander Skwar <listen@alexander.skwar.name>]

John Jolet wrote:
> On Feb 24, 2006, at 9:35 PM, Zac Slade wrote:
> 
>> On Friday 24 February 2006 00:03, Alexander Skwar wrote:
>>> John Jolet wrote:
>>>> Remember, the fs cannot be mounted when you extend it.
>>>
>>> That's wrong. Every FS can be extended online, even ext{2,3}
>>> with certain patches IIRC.
>> WRONG!!! (or partially anyway)  Here's the rundown:
>> reiser3, resizable online in two ways
>> 	1)resize_reiserfs /path/to/dev
>> 	2)mount -o remount,resize /path/to/dev
>> XFS, MUST be mounted to resize use xfs_grow /mount/point
>> JFS, resizable online with a mount -o remount,resize /path/to/dev
>> ext2/3, resizable offline reliably.  Online resize is a *very*  
>> experimental
>> experiment.  Have good backups.
>>
>> For a good reference if one is ever needed to give to a friend,  
>> relative or
>> foe try http://www.tldp.org/HOWTO/LVM-HOWTO/extendlv.html
> okay, i'll rephrase.... being an old aix hand... with the (possible)  
> exeption of reiser.... I, personally, would not trust any filesystem  
> to resize without being unmounted.

Why not? No need to unmount. resize_reiserfs and xfs are tested quite
much.

>  but then, compared to the aix  
> lvm, which can be resized with oracle accessing at full speed, linux  
> lvms are just barely getting to what I'd call "production ready".   

Why's that?

Alexander Skwar
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