[linux-lvm] ExChange of Harddisks

[linux-lvm] ExChange of Harddisks

[Arne Klöcker]

Hello,

i want to change my actual Setup (1 IDE Disk, 3 SCSI Disks, 1 Logical
Device which has 1 FS => This is used as one big volume for a private
fileserver). The Remianing Space on the SCSI Disks should be enough to hold the Data
from the IDE Disk.

Now i want to exchange the IDE Disk with a bigger SCSI Disk. 

I dont really know how to do this.

I added 1 of the SCSI Disks after installing the LVM so i generally know
how to change the size of the ext2fs (i dont remember which tool i installed
for this.. ) but tips are appreciated...

Scanning the archive i stumbled over an article where vgreduce was
mentioned, could i use this tool too, or is it just for emty PVs ?

Im kind of stuck and any help is apreciated...

TIA
Arne Kl�cker

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Re: [linux-lvm] ExChange of Harddisks

[Nils Juergens]

On Wed, 30.08.00, Arne Kl�cker <a.kloecker@gmx.net> wrote:
> i want to change my actual Setup (1 IDE Disk, 3 SCSI Disks, 1 Logical
> Device which has 1 FS => This is used as one big volume for a private
> fileserver). The Remianing Space on the SCSI Disks should be enough to
> hold the Data from the IDE Disk.
 
If i understand your setup right you can just move the physical extents from
your IDE-Drive to the SCSI-Drives. You do this with "pvmove <device>",
<device> being the physical volume you want to remove.  You can, if you
want, also specify to which PV's the PE's get moved to (see manpage).

If i am not mistaken, this can even be done without unmounting the
filesystem(s).

Dont forget to remove the PV from your VG before you remove the drive.

have fun,

Nils

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 >   Nils Juergens  | nils@muon.de | icq 7090774   <
 >  If we all work hard, we can turn this company  <
 >      around 360 degrees -- gruntbert(LOTD)      <

Re: [linux-lvm] ExChange of Harddisks

[Arne Klöcker]

Hello Nils,


> If i understand your setup right you can just move the physical extents
from
> your IDE-Drive to the SCSI-Drives. You do this with "pvmove <device>",
> <device> being the physical volume you want to remove.

I did this, but it stopped with an Error 208 leaving 1 PE on the IDE
Disk...

Any Ideas ?

Arne

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Re: [linux-lvm] ExChange of Harddisks

[Nils Juergens]

On Wed, 30.08.00, Arne Kl�cker <a.kloecker@gmx.net> wrote:
> > If i understand your setup right you can just move the physical
> > extents from your IDE-Drive to the SCSI-Drives. You do this with
> > "pvmove <device>", <device> being the physical volume you want to
> > remove.
> I did this, but it stopped with an Error 208 leaving 1 PE on the IDE
> Disk...

Well, i had similar problems with pvmove before, but was to lazy to work
it out. But if you post some strace/debug output we might be able to
track this down. Might be some work but being able to clean PVs to
remove them is quite important, IMHO.

'later,

Nils

-- 
 >   Nils Juergens  | nils@muon.de | icq 7090774   <
 >  If we all work hard, we can turn this company  <
 >      around 360 degrees -- gruntbert(LOTD)      <