Problem after downgrading the MCSG version

[Ramesh.K.R.]

Hi,

I have downgraded the MCSG version from 11.12 TO 11.08 After this, i am not able to "query" the configuration using "cmquerycl". It is giving the following problem !!!

cmquerycl -v -C cmclconfig.conf -n hornadu -n agumbe

Begin checking the nodes...
Looking for other clusters ... Done
Gathering configuration information ............. Done
Warning: The disk at /dev/dsk/c3t2d0 on node hornadu does not have an ID.
Warning: The disk at /dev/dsk/c3t2d0 on node agumbe does not have an ID.
Warning: Disks which do not have IDs cannot be included in the topology description.
Use pvcreate(1m) to give a disk an ID.
Warning: Network interface lan1 on node agumbe couldn't talk to itself.
Warning: Network interface snap1 on node agumbe couldn't talk to itself.
Warning: Network interface lan0 on node agumbe couldn't talk to itself.
Warning: Network interface snap0 on node agumbe couldn't talk to itself.
Warning: Network interface lan2 on node agumbe couldn't talk to itself.
Warning: Network interface snap2 on node agumbe couldn't talk to itself.
Failed to gather configuration information.

Immidiate help is highly appreciated

Thanks & Regards,
Ramesh.K.R.

[Steven E. Protter]

How did you do the downgrade?

Did you to do a swremove?

You might need to go through the configuration process again.

Also, why did you downgrade?

SEP

[Ramesh.K.R.]

Hi,

Thanks for the quick response..
Yes i did a "swremove" of the higher version & installed the older one.
What do you mean by saying: You might need to go through the configuration process again :
Pl let me know in a bit of detail
I also didn't want to go downgrade, but this was nessiated due to unavoidable reasons !!

Thanks & Regards,
Ramesh.K.R.

[G. Vrijhoeven]

Ramesh,

No perfomance issues i hope.....
If you downgrade you must make sure you do not use VARs that are not supported by the older version, but since you are using cmquerycl you are going to build a new asci file in the current version so that is no problem.

The disks an lan interfaces are warings. Do you get messages in the syslog file?
Do you have both nodes in .rhosts files on both servers?

Gideon

[Ramesh.K.R.]

Hi,

There is no info related to this in the "syslog". Both m/cs are in the respective ".rhosts" file. Actually, i have the "cmclnodelist" also which contains both m/cs.
Any other pointers ??

IMPORTENT NOTE: The same setup works fine again, if i upgrade the version of MCSG to 11.12 .........!!!!!!!!!!!!!

Thanks & Regards,
Ramesh.K.R.

[G. Vrijhoeven]

Ramesh,

Do you have the old cluster ascii file?
you could try to checkconf && applyconf those. If not

Can you try a
cmquerycl -v -C cmclconfig.conf -c clustername -n hornadu -n agumbe

Gideon

[Ramesh.K.R.]

Hi,

Yes. I do have the old configuration files. I have already tried with them, but no luck... It dosen't take work with it.

I have already run the "cmquerycl", but may be w/o the "cluster name" option. Dose it really matter ??

Thanks & Regards,
Ramesh.K.R.

[G. Vrijhoeven]

Hi,

If you cmcheckconf the old ascii file what kind of errors do you get then.

Did you create an ignite tape before upgrade, if so restore the tape, it could be that there is a mix of 11.12 and 11.08 files on your servers.

Gideon

[Ramesh.K.R.]

Hi,

To add to my previous message:

When i try to run "cmcheckconf" [or "cmapplyconf"] with old configuration file(11.12), it gives the following error:

cmcheckconf : Unable to reconcile configuration file cmclconf.conf

Regards,
Ramesh.K.R.

[Rita C Workman]

Ramesh,

I think you posted the other day about having two version of MC/SG in your cluster. One node at the old and one at the new.
So I'm wondering did you downgrade the one node back to the old MC/SG version?
Or did you upgrade everything to 11.12 and are now trying to back up?

Rita

[Dietmar Konermann]

Ramesh,

in general using 11.08 is not a really good idea. It's neither a platform release, nor is it actively supported by HP (by patches, etc.).

However, I would try to do an cmdeleteconf before trying the cmquerycl. Maybe the 11.08 command is confused by an exiting 11.12 /etc/cmcluster/cmclconfig file? Or have you already tried that?

Best regards...
Dietmar.

[Geoff Wild]

mv your cmclconfig binary out od the /etc/cmcluster dir (better yet - mv /etc/cmcluster /etc/cmcluster.11.12, then mkdir /etc/cmcluster).

From above, sounds like you have to reintialize your shared disks, recreate the vgs/lvols, then create new map files and vgimport them on the seconfd node...

You will have to re-create your cluster and package ascii files from scratch.


Then edit them manually to add your relevant information.

Then cmapply them...

Rgds...Geoff

[Ramesh.K.R.]

Hi,

Thanks a lot for each & everyone for your time...

As it turned out, the solution was more 'microsoft' like !!!!!!!!!!
SOLUTION:
1. remove the newer version
2. reboot the system
3. install the old version
4. that all..........!!!!!!!

[NOTE: having the cluster/package config files from the newer version might be really handy, in case "cmquerycl" does not go through. You can simply do "checkconf" & "applyconf" on those config files]

Thanks & Regards,
Ramesh.K.R.