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Re: [Networker] solaris to linux migration
2008-07-29 16:21:13
David Gold-news wrote:
Hi George,
It works, you have to use mmrecov to move the res and mm over, but it
isn't officially supported, as you noted. Indexes can actually be
rsync'ed over, so you don't have to do them all at once, rather than
having to restore them from tape.
After you migrate, you'll have to manually edit the res (via nsradmin in
offline mode--nsradmin -d /nsr/res/nsrdb, when networker is shut down)
to fix the difference in notifications between Solaris and Linux.
Thanks, Dave. What are the differences in notifications?
Licensing will go into grace mode for 15 days, so just make sure the
original box is shut down, or at least networker is first.
Other than that (and a few other details--stinit.def and similar stuff),
just follow the normal steps on "how to replace a networker server with
a new box, using the same hostname as the original one".
We're using an /etc/stinit.def file currently, but that's only on our
Linux snodes since they have the tape libraries. There are no tape
devices on the Solaris primary server. I guess that will all stay the
same then.
Using the same host name as the original seems to be the recommended
approach. I've heard it eliminates a lot of headaches. Would be easier,
though, from a logistics perspective to use a different host name, but
that might create a lot of additional work on the backup side to change
everything, I'm sure.
We did this once before when we moved from an old Solaris box to our
current Solaris server, and we kept the same host name, but we had to
play the game where we shut down the old server, bring up the new, test
everything during the day and then swap everything back before sundown
so we could run the nightly backups on the old box. This went on for a
week or so before we finally made the permanent switch. At no time could
the two servers be up simultaneously as they both had the same host
names. Kind of a pain, but otherwise, the only solution was to use a new
host name, and again, I suspect that would make life hard for NetWorker
and me as well.
George
Dave
Date: Fri, 25 Jul 2008 12:34:15 -0400
From: George Sinclair <George.Sinclair AT NOAA DOT GOV>
Subject: 7.4 from Solaris to Linux?
Kind of a dumb question here, but would there be any reason to believe
that NW 7.4 on a Solaris primary backup server could not be transferred
to a RH Linux primary server any less so than NW 7.2.2 could?
We are anticipating moving our NW server from Solaris to Linux - yes,
that's a whole other discussion that has been hashed out many times on
this forum - but we will not have this Linux machine available for some
time. In the meantime, we would like to upgrade our current Solaris NW
7.2.2 server to 7.4. I would think that later down the road, we could
simply install the same release (whatever that might be at that point)
on the Linux box and recover our indexes, resource and media databases
from tape (basically a disaster recovery) to allow the proper conversion
and *best* avoid any possible byte ordering problems between the two OS,
even though not officially supported by EMC-Legato (ahem). That sound
right?
Thanks for any comments.
We're running 7.2.2 on Solaris 9 with two RH Linux snodes. Not sure what
RH version we would be transferring the primary server to, though.
George
===================================
David Gold
Sr. Technical Consultant
Cambridge Computer Services, Inc.
Artists in Data Storage
Tel: 781-250-3000
Tel (Direct): 781-250-3260
Fax: 781-250-3360
dave AT cambridgecomputer DOT com
www.cambridgecomputer.com
===================================
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