omniback migration to new cell server..

[Amit Jadhav]

Hi,

I am having Omniback II 3.0 installed on T520 Class 10.20 server which act as cell server and installation server. I also have windows nt installation server for windows.

Now I want to move the cell server to N Class 11.0 machine. How to proceed. Can somebody pls help me out with detail migration steps. I need it very soon.
Thanks for your help in advance..

Thanks,
Amit.

[Ben Spencer]

Install omniback on new cell server.
copy /var/opt/omni /etc/opt/omni to the new cell server while omniback is stopped.
Start omniback
Is the new cell server to have the same name as the old?
if not then run omnidbutil -change_cell_name "old-cell"
Then reinstall or upgrade all clients as a precaution.

I am not comfortable with the change cell command. It has caused me problems in the past. But you must use it if the name has changed. Perhaps specifying the "old-cell" name will prevent those problems. I believe HP told me to give it the new cell name. Don't do that. Either run omnidbutil -change_cell_name and let it figure out the old name or specify the old name explicitly.

remember that your post/pre exec scripts are in /opt/omni/lbin and will need to be copied.

We also have an NT installation server and the above procedure worked fine.

[Amit Jadhav]

Thanks Paul..

But my concern is do I have to remove all the clients form old cell server and install them again on new cell server... or do I have to export all the clients form the old cell server and import them on new cell server..pls advise

Thanks,
Amit.

[Alexander M. Ermes]

Hi there.
Do an export of the database on the old machine
( omnidbutil -writeascii ...)
Copy the ascii files to the new machine, where you installed the new version. Here try an import ( omnidbutil -readascii ...).
Then change the cellserver. Thus you should have all data from the old version.
If you have any questions, feel free to contact me ( Alexander_Ermes@web.de )
rgds
Alexander M. Ermes

[Amit Jadhav]

Hi,

Thanks friends for all your help. I would like to put down the exact steps of how I proceed.

1. As you are going to migrate to a new cell server with different IP addr ; take the new licences from HP for this IP (new cell server)
2.No backup or resotre session should run
3.export all the hosts from the cell
4.stop all omniback processes (omnisv.sh stop)

On the new cell server;
5.recursively copy /etc/opt/omni directories from the old cell server to the new
6. run the following script to update the name change;
/opt/omni/sbin/install/omnichhost.ksh old_name new_name
7.Run omnicc to update the configuration
8.copy the database i.e /var /opt/omni to new cell server.
9.install the new licences.
8.check if all users are correctly set
9.check for all logical drives .

Thanks,
Amit Jadhav

[Rita C Workman]

I came across this thread...earlier today in fact. And your post seems a good place to share it:

http://us-support.external.hp.com/cki/bin/doc.pl/sid=49f3789c198ae52511/screen=ckiDisplayDocument?docId=200000048580479

Hope it helps you,
/rcw