Re: Am I'm really confused or is evms really confused?- Please Help!

Hi Juergen,
	Thanks very much for the pointers, I'm now in the process of
correcting my error.  Looks like I was confused, not EVMS!

	Thanks,
		Erik.

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf 
> Of Jürgen E. Fischer
> Sent: Thursday, October 11, 2007 3:14 PM
> To: Erik Ohrnberger
> Cc: [email protected]
> Subject: Re: [Evms-devel] Am I'm really confused or is evms 
> really confused?- Please Help!
> 
> Hi Erik,
> 
> On Thu, Oct 11, 2007 at 11:00:49 -0400, Erik Ohrnberger wrote:
> > I have two LVM2 volumes in my file server system.  I wanted 
> to add new 
> > drive that I got to one of them.  I thought I was going 
> through the correct steps:
> > 
> > * umount the volume
> > * Select the hard drive, and perform a recursive delete to make it 
> > available.
> > * In container display, add a new hard drive device to the LVM2 
> > container (Expand -> Container)
> > * Create an LVM2 region on the drive (Create -> Region -> LVM2)
> > * Expand the LVM2 container to include the new region (Expand -> 
> > Container)
> > * Expand the volume that is on the container (it will take 
> care of the 
> > file system expansion)
> > * Save the changes.
> > 
> > But now, when I look at the evms configuration in evmsgui, 
> I get this 
> > display (please see attached image), and now I have no idea how to 
> > undo this.  I don't understand how lvm2/c00/r00.01 can be part of 
> > multiple lvm2's.  All I wanted to do is to grow lvm2/c00 to include 
> > the entirety of the hdd hard disk.
> 
> Seems you
> - expanded your LVM2 container c00 by hdd,
> - created a region r00.01 in it,
> - expanded your LVM2 container c01 by that region and
> - expanded the r01.
> 
> You should have simply added hdd to the LVM2 container c01 
> and would have been able to expand r01 - depending on the 
> filesystem even w/o umounting r01 first.
> 
> To undo the change, you need to
> - shrink r01 to the old size (afaik reiserfs can do that mounted and
>   ext3 unmounted; with other fs you probably need to backup, delete,
>   recreate and restore the volume in the old size),
> - move the mapping of the shrinked volume r01 from r00.01 to 
> the rest of
>   c01 in case r01 still uses space on r00.01,
> - shrink c01 by r00.01,
> - delete r00.01 from c00 and
> - shrink c00 by hdd.
> 
> 
> hth,
> Juergen
> 
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