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Moving Call Manager --> New Servers 1

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snootalope

snootalope

IS-IT--Management
Jun 28, 2001
1,706
US
Hey guys!

I got a migration comming up here shortly that involves returing our currently leased servers for new ones. So, I'm looking into how I can move my current publisher and subscriber, BOTH, no new machines and still retain all my user /environment information.

I'm almost certain it's just a matter of copying the db's over, but i can't find anything on Cisco's web site about migrating. Does any know where I can find a white sheet on this, or if you've done this before, how'd ya pull it!??

Also, I have a Unity server that also needs to be moved to a new machine. Thanks for any help guys!!!

FYI: don't know if this is a huge deal, but when we move our stuff over, our new server will be CCM 4.0 instead of our current 3.3(3) --- thanks again!
 
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oh gee's nevermind...i forgot about that email you sent me!!! sorry!
 
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Actually, you don't need any product keys for Unity, other than the license file that we talked about earlier.

For Exchange, the version that comes with the Unity CD's has it's own product key; should be on the CD sleeve. Same with SQL - the version that comes with the Unity CD's should have it's product key listed on the CD sleeve.

TMH
 
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Tina, I'm reading into this documentation of CCM 4.1.2 Upgrades.. I want to see if maybe this has changed since you've done yours. It's telling me that if you want to upgrade from ANY version of 3.3 all you need to do is update the OS to 2000.2.6sr3 (or later) and it should be fine..

Is that what you did and had problems with?

I have the 3.3.3 to 3.3.4 upgrade kit right here, but if i can save myself a few hours and just go straight to 4.1.2, that'd be sweet. I talked TAC about it and kind of through in the idea of 'someone' i know having problems with their supposidly supported updgrades....they pretty much argued it and dismissed it quickly.

what do you think?

On a good note, i got my new servers running OS 2000.2.7 now with 4.1.2 and it's working great in a test envo. Unity is also up and running and waiting for a data import...lookin good! (for right now anyway)
 
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I'd have to go with TAC on this one...upgrades from 3.3.3 to 4.1.2 aren't supported; it's listed on their compatibility matrix, which I always have handy:


I did perform an upgrade from 3.3.3 to 3.3.4, then upgraded to 4.1.2. The upgrade itself I didn't have an issue with; it was the fact that they told me I could do a same server recovery with a new install of 4.1.2, but you can't...so I had to upgrade from 3.3.4 to 4.1.2 (supported), do a backup of the 4.1.2 database, and then do a clean install of 4.1.2 and restore the database.

The 3.3.4 upgrades shouldn't take more than 2 hours or so, depending on how many servers you have. You should upgrade the OS as recommended on your existing 3.3.3 boxes, and then run the 3.3.4 upgrade.

I'm glad your other servers are up! I take it you got the correct software for 4.1.2, then?

TMH
 
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yeah.. I got the 4.0x New Install/Upgrade and then just bumped it up to 4.1.2. no problems at all with that! Takes forever to install, but works like a champ once it's done.

Yeah, on my old machines, i'm just going to update the OS to 2000.2.6sr3 and then upgrade to 3.3.4 and then up to 4.1.2, do my BARS bakup, and restore the data to my already installed 4.1.2's (new servers)

Hope all goes well!
 
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Your plan sounds solid; good to know that the software worked for you. We're in the same boat with our new CCM servers; the only software I can get is for 3.3.4 (!). Unbelieveable.

Anyways, sounds like you have it down, everything should install fine...

TMH
 
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I'll be sure to check back here and let you know how it all ends up..

As far as upgrading on the servers with all the data, is it pretty seemless? I mean, what's the chances of me having a disastor and having to start from scratch?

Also, according to this upgrade manual i'm reading, all i have to do is upgrade my current PUBLISHER to 4.1.2 and then back it up and restore on the other PUBLISHER (new one). I don't have to worry about the subscribers huh....i'm talking data wise, not software.
 
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You are correct, you only have to upgrade the publisher to 4.1.2, because it holds the master copy of the SQL database. The subscribers just get copies.

As far as the upgrade - data-wise, you upgrade the publisher to 4.1.2, install BARS, run BARS and backup your data, then restore the data to the new servers.

Couple of questions - do your new servers have the same host name and/or IP addys of your old ones? I would highly recommend that if you are restoring the data from BARS...

TMH
 
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Yep. Same name, IP's, dns sufix, you name it it's the same! See, I can figure out somethings without you Tina!! ;-) but what would i do without ya...

I'm actually about to restore all my current Unity info to our new server...see how she goes!
 
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Ok, i'm thinking again.

Lets say i run into serious problems with my data migration. Can my current publisher run at 4.1.2 while it's subscriber is still at 3.3.3 and function properly? I'm just trying to think worst case scenario here..
 
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When you have two different versions of CCM running in your cluster (which will happen during an upgrade) they won't communicate with each other...but, while you have them at two different versions, as long as all the phones are registered to your subscribers, the phones will be able to function normally...I think they only thing they won't be able to do is forward/unforward their phones, since the forwarding table resides on the publisher.

TMH
 
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So if i understand you correctly....I should technically be able to go into my server room and yank the power cable on my PUBLISHER and all my users phones will still work (except the forwarding). Is that right?
 
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Yep. Have done this (not yank the power cord, of course, but on an upgrade, power outage, or reboot) many times.

Also, make sure that any gateways users use to make calls out to the PSTN are also registered to the subscribers...and voicemail ports. If, for whatever reason, they're registered to the publisher and configured for failover to the subs, when 4.1.2 comes up on the pub, the vm ports/gateways *will* register back to the pub, and since the subs and pub won't communicate because they're at different versions, users won't be able to make outside calls/access voicemail.

TMH
 
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So, you're saying that I don't have to wait for the weekend and put my drinking and partying on hold to update my publisher.

That, I can upgrade the Publisher as is. Do you yank the net cable at least?

I'm looking at my gateways.. all h323's and their registration says "Unknown" so that kind of makes me nervous. All my voice mail ports are registered with the subscriber.. is there a way that i can look at ALL registered devices in one shot? phones, gateways, etc...
 
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Nope, I don't yank the network cable. I don't know if you could do it right away - I've always done my upgrades over the weekends - but yes, your phones will function if the publisher is down.

H.323 has no concept of registration - it's supposed to say Unknown. I'm so used to my MGCP gateways these days...have a VG200 on my test lab set up H.323...You know, I would test this out first - reboot your publisher, and during the reboot, try to place an outside call from a phone registered to the subscriber. If it doesn't work, you might have to change the target IP addy on the H.323 gateway device...I may give this a whirl on my test lab also...

TMH

 
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i'm scared. I know you're right, but are you sure I should be able to reboot my publisher with all my users here?

I checked all my dial peers on my gateways/routers and they're all pointing at my subscriber.
 
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Hehe don't be scared! I do it all the time. If no devices are registered to the publisher, the users won't even notice. The sub may bark at you about not being able to contact the master database, but once the pub comes back up, it will stop. But, since your dial peers are pointed at your sub, you should be alright.

Tell you what - I'll try it out on my test lab with the VG200 and let you know. How does that sound?

TMH
 
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alright, but i'm scared for you, too! I'll wait for ya..
 
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Ok, I went ahead and booted the pig, and surprise surprise you were right ;-)

Not a single problem.

I'm gonna start updating this thing!! (feel free to throw in any advice on this)
 
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Cool. I was at a different building than my test lab, or I would have gotten back to you sooner. I didn't think there would be, but you never know. At least now you know that phone service won't be interrupted...let me know how things go.

TMH
 
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