Thank you all for all your responses. From all the email I received I
have made a summary of all the steps to do this flip. 

(Let say the server name in question is A)

1. Stop networker processes on the NSR server A.
2. Unmount old /nsr filesystem.
3. Mount new /nsr filesystem.
4. Enter all the existing license
5. Run jbconfig(to configure the library)
6. Make sure backups can be done using the new Storage Node config.

Now when we need to restore:
1.      Stop networker processes.
2.      Rename the new /nsr  to /nsr.SN
3.      mount the old /nsr to /nsr
4.      Start all the Netwroker processes including the server process
by touching the file /nsr/runasserver and modifying the script as below:

if [ -f /usr/sbin/nsrd -a ! -f /usr/sbin/NetWorker.clustersvr -a -f 
/nsr/runasserver ]; then

5.      Restore from tape.
6.      Stop NSR processes when restore activities are over.
7.      Move back the nsr.SN to /nsr
8.      To reconfigure as a storage node, do
                rm -f /nsr/runasserver and restart networker.


Please let me know if this will work and looks right.

Thanks in advance.

Somen




-----Original Message-----
From: Davina Treiber [mailto:Treiber AT hotpop DOT com] 
Sent: Monday, August 09, 2004 5:41 AM
To: Legato NetWorker discussion; Somen Chanda
Subject: Re: [Networker] Convert server to storage node

Somen Chanda wrote:
>  
> Andrew,
> 
> The start portion of the networker server looks like the following:
> 
> 
> 'start')
> (echo 'starting NetWorker daemons:') > /dev/console
> if [ -f /usr/sbin/nsrexecd ]; then
>         (/usr/sbin/nsrexecd; /bin/sleep 15) > /dev/console 2>&1
>         (echo ' nsrexecd') > /dev/console
> fi
> if [ -f /usr/sbin/lgtolmd ]; then
>         (/usr/sbin/lgtolmd -p /nsr/lic -n 1) > /dev/console 2>&1
>         (echo ' lgtolmd') > /dev/console
> fi
> if [ -f /usr/sbin/nsrd -a ! -f /usr/sbin/NetWorker.clustersvr ]; then
>         (/usr/sbin/nsrd) > /dev/console 2>&1
>         (echo ' nsrd') > /dev/console
> fi
>         ;;
> 
> I am not sure which line to comment out.
> 
> Could you specify?
> 

The nsrexecd is the client daemon, and runs on all machines including 
servers and storage nodes. For a storage node, the nsrmmd daemons are 
spawned off from this daemon, so nothing further needs to be started 
manually.

lgtolmd is the licence daemon, and hardly anyone uses this. I have never

known any customer that uses it. If you are not using licence manager 
you can safely ignore this.

nsrd is the server daemon. This is the bit you need to comment out if 
you want to run just a storage node on a machine with the server package

installed. Commenting it out as suggested by others will work fine, 
although if this is an activity you might need to do several times, you 
might prefer a slightly more elegant solution. What I have previously 
done for a customer was to modify the startup script to check for the 
existence of a flag file, and only start the server daemon if the file 
exists. The modified line would be:

if [ -f /usr/sbin/nsrd -a ! -f /usr/sbin/NetWorker.clustersvr -a -f 
/nsr/runasserver ]; then

To bring the storage node up as a server, just do
touch /nsr/runasserver
then restart networker. To reconfigure as a storage node, do
rm -f /nsr/runasserver
and restart networker.

The caveat when modifying the startup script for any reason is that it 
will be overwritten if you upgrade NetWorker, so you should make a note 
of any changes and re-apply them after upgrading.


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