Moving HP-UX 11.00 from N4000 to L2000

[Mladen Despic]

We run Broadvision with Sybase on HP-UX 11.00.
We would like to move the system from a N4000 server to a L2000 server. Both systems have internal disks as well as some additional volume groups on the XP256.

What is the best way of doing this?

[Victor BERRIDGE]

Hi,
What do you mean by moving the system? all of it os included?
If not your external vg?
If external vgs you can configure the XP256 so the other system can see the luns then vgexport them from the N4000 to mapfiles copy the mapfiles on the L2000 reboot theL2000 and import them, put right /etc/fstab etc....

Just thoughts

All the best

Victor

[Mladen Despic]

Yes, all of it - os included.
So to move vg00, one would likely use ignite, but the hardware types are different, and I'm not sure of the implications. Any suggestions?

[harry d brown jr]

I'd suggest you install the N using the latest install media, then "port" your data and apps over. I wouldn't suggest trying to "move" the OS, because all of the devices are in different places.

live free or die
harry

[Sanjay_6]

Hi,

Do a vgexport to a map file for all the data VG on the old system. Take a ignite OS backup for the old system. Use the ignite tape to restore the OS to the new system. then do a vgimport to get the data from the old Vg to the new system.

Hope this helps.

Regds

[Victor BERRIDGE]

Well, I managed to install a E55 from a D220 ignite, then a H50 from a E35 so it doesnt seem impossible...
I would start by that then:
1) Configure the XP256 to show the N4000 LUN to the L2000
2) vgexport to mapfile somewhere easy to find on vg00...
2) make a make_recovery tape

4) make_recovery in interactive mode on the L2000 and customize to your needs
5) vgimport ...

All the best

Victor

[Sanjay_6]

Hi,

The best way to do this would be to take a complete data backup. Do a vgexport for the data VG's. Load OS fresh on the new server and then do a "vgimport" for the data VG's.

Hope this helps.

Regds

[Deshpande Prashant]

HI
Configure XP so that both machines can see the LUNs
Take a complete data backup.
Export the data VGs.
Load OS/patches fresh on the new server.
Import the data VGs.

Thanks.
Prashant

[Michael Tully · Accepted solution]

Hi,

I don't see a problem in recovering your N class server to your L. If you use the interactive version when cutting the tape you have some form of control once the L class server boots off the tape. There is not a great deal of difference between an L and an N architectually.
As the other guys have already mentioned you can create 'vgexport' mapfiles in 'preview' mode so that when you create you volume group(s) on your L class you can easily import them.

To make your interactive tape
# make_tape_recovery -x inc_entire=vg00 -I -v -a /dev/rmt/0mn
To create your mapfiles on N class
# vgexport -m vgxx.mapfile -s -p -v /dev/vgxx
Copy these files to your L class server
create your volume group
# mkdir /dev/vgxx
# mknod /dev/vgxx/group c 64 0xn0000
(n denotes next number)
To import your mapfiles on L class
# vgimport -m vgxx.mapfile -p -s -v /dev/vgxx
(This is in preview mode)
Once this is okay, you can turn off the volume
group on your N class.
# vgchange -a n /dev/vgxx
On L class
# vgimport -m vgxx.mapfile -s -v /dev/vgxx

This should do the job.
-Michael

[Mladen Despic]

Thank you all for your contributions.

I would like to know what problem, if any, do you see with the following option.

Currently, the N4000 system is a production system, I'll call it HOSTA. The L2000 is a quality assurance system, I'll call it HOSTB. It basically runs the same applications as HOSTA. We want to move the QA system (HOSTB)from L2000 to another L2000 server, and then we would move HOSTA from N4000 to the current QA server (L2000). Rebuilding HOSTB on another L2000 will be easy. Once this is done, we will have vg00 already available on the QA server. Can we not simply change the hostname from HOSTB to HOSTA then? We would have to export all of the non-vg00 volume groups as well, and then import application volume groups on XP256 that were previously exported from HOSTA.

Your thoughts