[linux-lvm] online resize of ext2

[linux-lvm] online resize of ext2

[Jean-Eric Cuendet]

Hi,
What's the status of that thing? 
Is it stable for production use? 
Will it go into the mainstream kernel anytime soon?
Thanks
-jec

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Jean-Eric Cuendet
Linkvest SA
Av des Baumettes 19, 1020 Renens Switzerland
Tel +41 21 632 9043  Fax +41 21 632 9090
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Re: [linux-lvm] online resize of ext2

[Andreas Dilger]

Jean-Eric Cuendet writes:
> What's the status of that thing? Is it stable for production use? 

I have been using it for quite some time without any problems, and there
have been no bug reports for a long time either.  The only recent change
was to update the kernel patch for 2.4.0, because some changes in the
quota code were causing it to oops.

Because the code is only used at resize time it does not affect normal
operations, so it is OK to put into a production kernel, IMHO (although
being the author makes me a bit biased ;-).  Any other ext2online users
out there?

> Will it go into the mainstream kernel anytime soon?

I haven't tried submitting it for 2.4.0 yet.  1.5 years ago when "the 2.4
kernel is going to be released very soon now", Linus, Alan, et. al. said
it would be added in 2.4 or 2.5.  Maybe it is time for me to try adding
the code to the 2.4 kernel again.

Cheers, Andreas
-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert

Re: [linux-lvm] online resize of ext2

[Steven Lembark]

> > Will it go into the mainstream kernel anytime soon?
> 
> I haven't tried submitting it for 2.4.0 yet.  1.5 years ago when "the 2.4
> kernel is going to be released very soon now", Linus, Alan, et. al. said
> it would be added in 2.4 or 2.5.  Maybe it is time for me to try adding
> the code to the 2.4 kernel again.

2.4.1 is more-or-less stable enough to start with; you might
take a shot at getting the patches into 2.4.2.

-- 
 Steven Lembark                                   2930 W. Palmer St.
                                                 Chicago, IL  60647
 lembark@wrkhors.com                                   800-762-1582

Re: [linux-lvm] online resize of ext2

[Benoit SERRA]

Andreas Dilger wrote:

> Because the code is only used at resize time it does not affect normal
> operations, so it is OK to put into a production kernel, IMHO (although
> being the author makes me a bit biased ;-).  Any other ext2online users
> out there?

I use it on a test system, and I made a big amount of resize without any
loss of data.
Really good.
Since I didn't have any production system runnig with Linux, I can't say
if it is stable enough sorry.

Just after the release of 2.4.0 kernel, I patched it with the patch for
2.3.99 kernels and everything worked perfectly.

I only get a few rejects on Config.in, but I inserted it by hand.

Re: [linux-lvm] online resize of ext2

[James]

Hello

What are the version necessary for this?

kernel = ??
package version = ??

command used = ??

Thanks

James Tapping clara.net


On Thu, 22 Feb 2001, Benoit SERRA wrote:

> 
> 
> Andreas Dilger wrote:
> 
> > Because the code is only used at resize time it does not affect normal
> > operations, so it is OK to put into a production kernel, IMHO (although
> > being the author makes me a bit biased ;-).  Any other ext2online users
> > out there?
> 
> I use it on a test system, and I made a big amount of resize without any
> loss of data.
> Really good.
> Since I didn't have any production system runnig with Linux, I can't say
> if it is stable enough sorry.
> 
> Just after the release of 2.4.0 kernel, I patched it with the patch for
> 2.3.99 kernels and everything worked perfectly.
> 
> I only get a few rejects on Config.in, but I inserted it by hand.
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> 

Re: [linux-lvm] online resize of ext2

[Andreas Dilger]

James Tapping writes [re online resizing]:
> What are the version necessary for this?
> 
> kernel = ??
> package version = ??
> 
> command used = ??

Go to

http://sourceforge.net/projects/ext2resize/

and download ext2resize-1.1.16.  It has the appropriate kernel patch
for 2.2.18 and 2.4.0, along with the user tools.  Once you have patched,
recompiled, and installed your kernel, you can resize mounted filesystems
either via lvextend + ext2online, or preferrably e2fsadm (from beta5).

Note that there are some limits to online resizing, so read the ext2online
and ext2prepare man pages.

Cheers, Andreas
-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert

Re: [linux-lvm] online resize of ext2

[Jan Niehusmann]

On Wed, Feb 21, 2001 at 10:25:24AM -0700, Andreas Dilger wrote:
> Any other ext2online users out there?

Yes, I've been using it for some time without problems. (I had some 
problems in 2.3.x, but they were probably caused by an unrelated bug
that got triggered by the online-resize)

I actually did things like resizing a fs while copying to it or compiling
things on it, because I realised that the partition was to small to 
complete the job without resizing.

Jan

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