Date:    Fri, 6 Aug 2004 10:44:05 -0700
From:    Darren Dunham <ddunham AT TAOS DOT COM>
Subject: Re: Convert server to storage node

>
> We currently have two NSR servers A & B independent of each other but
> network connected. But we are planning to consolidate our Legato
> environment. So server A will remain as the NSR server and we will convert
> server B to a storage node. But we do a considerable amount restores
> regularly and our Browse retention policy is 1 Year. So we might need to go
> back to our old config i.e. convert server B into a NSR server as and when
> required. We are currently dealing with the licensing issue with legato.

You shouldn't need a license for a local restore from a single tape
drive.

> I have created a separate mount point for the nsr directory on server B and
> planning to create the new storage config on this new nsr filesystem. I
> will unmount the current nsr directory so that it is untouched.

Cool.

> But the issue is if I am converting the NSR server B to a Storage node I
> will need to remove the LGTOsrvr package from the server but when we want
> to go back to the old config then we will need the LGTOsrvr again.
>
> Does anyone have a better idea, how this can done quickly and easily.

Hmm.  What launches the daemons on a storage node?  (I don't have one
installed).  If it's not nsrd, then simply moving it aside may be
sufficient.

If it is, how does nsrd tell the difference between a master and a
storage node?

DG: Rather than uninstalling the LGTOsrvr,just edit 
/etc/init.d/rc2.d/S95networker (if solaris), and remark out the line that 
starts nsrd. Just remember your config in case you patch it, since that could 
overwrite the init file, which would enable nsrd.

DG: nsrd on the backup server communicates with nsrexecd on the client, and it 
is nsrexecd on the client that starts up nsrmmd. So the only process that needs 
to be running on the storage node is nsrexecd, although you have to have the 
correct LGTOnode installed.



--
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/ 
<http://www.taos.com/> 
Got some Dr Pepper?                           San Francisco, CA bay area
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