Moving to new Hobbit server

David Pullman wrote:

I also had to do the export/import of rrd files when moving from RHEL4 on an i686 to RHEL 4 on a x86_64 processor type.

--David

Andy France wrote:

ZanDAhaR wrote on 28/02/2006 06:56:12 p.m.:

Hey guys,

Can't seem to find anything on this but then again I haven't gone
through all the results that come up on the mailing list search either.

We moved from BB server to a Hobbit server a while ago but it was on the
same box so there was no issue there. We are shuffling some old hardware
around and decided to give our hobbit server some more grunt and also
add some other odd apps on it. We'll want to progrssively move the hosts
over to the new server so the clients are cool, just update the ip in
windows ones, and the ip and hostname in the nix ones

As for the server I'm assuming I can just copy the data dir over for the
host I'm moving. I cannot imagine there being anything server specific
in any of the status messages or graphs ?

Watch out if you are changing OS/filesystem at all.  Existing RRD files will need to be exported and imported rather copied if this is the case (I had to do this for a small-ish migration from Solaris x86 to Solaris Sparc).

So action plan would be, shut down client on XYZ, define it in bb-hosts
file on NEWHOBBIT, has it out in the OLDHOBBIT bb-hosts file, copy
appropriate data folders from OLDHOBBIT to NEWHOBBIT (update ownership
if need be), update ip addy and hostname in XYZ client settings, start
client XYZ, be happy :)

Any flaws in this thinking or suggestions of easier way even though I
cannot imagine one can you please let me know

Thanks

Allan

Andy.

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Hmm ok I hadnt thought about that as I don't understand the inner workings of RRD etc. We're moving from a Pentium Pro 200 box on Redhat 7.2 to a Dual Athlon MP System on Redhat 9 (why RH9 you ask, its the ONLY supported OS for another application thats going on there and if we hit any problems if its not RH9 they will not help us, poverty I know)

If I do a uname -m they both say i686, uname -p one says unknown other says athlon. Should this be an issue ? Also if they are different enough will the graphs just not work or be corrupted or not update ? Can someone please assist me in how to import/export the rrd files then as I have never done that before. Been looking in the rrd docs but still not entirely sure what I need/want.

The proxy idea sounds good although I don't know if its going to be warranted in this case as we don't have a huge number of hosts to deal with.

Thanks for the feedback guys

Allan