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#1 (**permalink**) 01-05-2008, 10:30 AM

Hi all !

Situation : 1 Unix box running under AIX 4.3.3
1 ESS
1 DS4000

I have a Volume Group that contains several disks located on an ESS
2105. I need to migrate the whole VG to our brand new DS4000 storage
box.

What is the best way to do this?

Thanks a lot in advance.

#2 (**permalink**) 01-05-2008, 10:30 AM

gniagnia@gmail.com wrote:
> Hi all !
>
> Situation : 1 Unix box running under AIX 4.3.3
> 1 ESS
> 1 DS4000
>
>
> I have a Volume Group that contains several disks located on an ESS
> 2105. I need to migrate the whole VG to our brand new DS4000 storage
> box.

> What is the best way to do this?
The best i do not know.

A simple approach:
- Add new hdisks from you new DS4000 to your VG ( Should have as much
space as the currently ones )
- use migratepv to migrate all stuff from the old disk to the new one
- remove the empty hdisk from the VG with reducevg

Be happy if you encounter no problems

hth
Hajo

#3 (**permalink**) 01-05-2008, 10:30 AM

make a (thrid ?) mirror copy could help also

Hajo Ehlers wrote:
> gniagnia@gmail.com wrote:
> > Hi all !
> >
> > Situation : 1 Unix box running under AIX 4.3.3
> > 1 ESS
> > 1 DS4000
> >
> >
> > I have a Volume Group that contains several disks located on an ESS
> > 2105. I need to migrate the whole VG to our brand new DS4000 storage
> > box.
>
> > What is the best way to do this?
> The best i do not know.
>
> A simple approach:
> - Add new hdisks from you new DS4000 to your VG ( Should have as much
> space as the currently ones )
> - use migratepv to migrate all stuff from the old disk to the new one
> - remove the empty hdisk from the VG with reducevg
>
> Be happy if you encounter no problems
>
> hth
> Hajo

#4 (**permalink**) 01-05-2008, 10:30 AM

Another simple approach:
If your PP-size could/should (same LUN size that is) be the same you
could use migratepv or make (a third ?) mirror-copy with mklvcopy -k.
Both options should take a while, but both can be done live so no
backup restore is needed.

Marcel

- Then it comes to be that the soothing light at the end of your tunnel
is a fraighttrain coming your way -

Hajo Ehlers wrote:
> gniagnia@gmail.com wrote:
> > Hi all !
> >
> > Situation : 1 Unix box running under AIX 4.3.3
> > 1 ESS
> > 1 DS4000
> >
> >
> > I have a Volume Group that contains several disks located on an ESS
> > 2105. I need to migrate the whole VG to our brand new DS4000 storage
> > box.
>
> > What is the best way to do this?
> The best i do not know.
>
> A simple approach:
> - Add new hdisks from you new DS4000 to your VG ( Should have as much
> space as the currently ones )
> - use migratepv to migrate all stuff from the old disk to the new one
> - remove the empty hdisk from the VG with reducevg
>
> Be happy if you encounter no problems
>
> hth
> Hajo

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How to migrate a VG from one system storage to another