Expanding LVM volume on JFS

Hi,

I have several partitions on the same physical disk, all of them formatted as
JFS and all of 
them assigned different drive letters.  All contain some data that can be
temporarily moved 
elsewhere.  I would like to join some of the partitions in a new, bigger LVM
volume.
Is there a way to do it safely (this is a production machine)?  Could you please
point me to the 
description or HOWTO? I cannot afford to make any mistakes :-)

Thanks



<feeb@chem.utoronto.ca>

On Sun, 5 Feb 2006 15:48:55 UTC, "FEEB" <feeb@chem.utoronto.ca>
wrote:

> I have several partitions on the same physical disk, all of them formatted
as JFS 
> and all of them assigned different drive letters.  All contain some data
that can 
> be temporarily moved elsewhere.  I would like to join some of the
partitions in a 
> new, bigger LVM volume. Is there a way to do it safely (this is a
production 
> machine)?  

Define 'safely'.

ANY mucking with partitions or volumes is inherently risky, no matter what
tools or what OS you are using.  Make sure you have a backup.


> Could you please point me to the description or HOWTO? I cannot afford to 
> make any mistakes :-)

I don't know if there really is one.  It's not particularly complicated.
Choose 'expand volume' from the LVM.EXE options menu, and follow the prompts 
-- the subsequent steps are basically the same as creating new a LVM volume,
as far as I can see.

-- 
Alex Taylor                                        
http://www.cs-club.org/~alex

Copy the data to another disk or burn a cd. If you have partitions C: D: 
E: F: and G:, you an delete the last three partitions without effecting 
the first two partitions. Then you can create a new E: partition filling 
the remaining space. If your OS is in the F: partion, you have more work 
to do.

Richard Freeman
> 
> I have several partitions on the same physical disk, all of them formatted
as JFS and all of 
> them assigned different drive letters.  All contain some data that can be
temporarily moved 
> elsewhere.  I would like to join some of the partitions in a new, bigger
LVM volume.
> Is there a way to do it safely (this is a production machine)?  Could you
please point me to the 
> description or HOWTO? I cannot afford to make any mistakes :-)
> 
> Thanks
> 
> 
> 
> <feeb@chem.utoronto.ca>
> 
> 
> 

On Mon, 6 Feb 2006 17:28:08 UTC, Richard Freeman 
<rjfreem@frontiernet.net> wrote:

> Copy the data to another disk or burn a cd. If you have partitions C: D: 
> E: F: and G:, you an delete the last three partitions without effecting 
> the first two partitions. Then you can create a new E: partition filling 
> the remaining space. If your OS is in the F: partion, you have more work 
> to do.

Not the way to expand JFS.

JFS can be expanded on the fly. That means you would have to backup 
the part(s) you will add to an existing volume and simply add it/them 
to the volume. You would simply read the documentation about JFS and 
LVM for that. It is described well.

-- 
Tschau/Bye
Herbert

Visit http://www.ecomstation.de the home of german eComStation

Reviving an old thread because I've been looking for JFS information and 
need to knwo if I'm misunderstanding this--

On Mon, 6 Feb 2006 17:28:08 UTC, Richard Freeman
<rjfreem@frontiernet.net>
wrote:

> Copy the data to another disk or burn a cd. If you have partitions C: D: 
> E: F: and G:, you an delete the last three partitions without effecting 
> the first two partitions. Then you can create a new E: partition filling 
> the remaining space. If your OS is in the F: partion, you have more work 
> to do.
>  
> Richard Freeman
> > 
> > I have several partitions on the same physical disk, all of them
formatted as JFS and all of 
> > them assigned different drive letters.  All contain some data that can
be temporarily moved 
> > elsewhere.

Does the order of the volumes on the drive really matter?
If this is a JFS partition, why can't you just delete the old volumes and 
append the freed space to the JFS volume you want, regardless of their 
location?


-- 
Dan Drake
dd@dandrake.com
http://www.dandrake.com/