07-21-2009 02:33 AM - edited 03-15-2019 07:02 PM
If I am upgrading from UCM 6.1 to UCM 7.1 on new hardware, and the hardware is "one step up" from a server perspective, will I have issues?
Today pub/sub on 7835's, new cluster will have 7845's. Can this be done via first loading new 7845 (pub/sub) with 6.1, then restoring backup of 6.1 we took onto new pub, then upgrading to 7.1?
We have 30 gateways and a large dial-plan, so we do not want to have to configure from scratch.
thank you
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07-21-2009 05:27 AM
Hey Daniel,
Long time my friend, hope all is well with you (80 degrees in Calgary yesterday!)
You are most correct with your thinking here. The DRF backup/restore must be on the exact same version so this will be a two step process. The steps are nicely listed here (don't forget the Licensing aspect :);
Replacing the Publisher Node
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/install/6_1_1/cluster/clstr611.html#wp87717
Hope this helps!
Rob
07-21-2009 05:27 AM
It HAS to be done the way you plan, you cannot restore info on different versions.
You install same exact version on new HW, restore the backup, make sure everything runs fine and then upgrade to 7.X
HTH
java
if this helps, please rate
07-21-2009 05:27 AM
Hey Daniel,
Long time my friend, hope all is well with you (80 degrees in Calgary yesterday!)
You are most correct with your thinking here. The DRF backup/restore must be on the exact same version so this will be a two step process. The steps are nicely listed here (don't forget the Licensing aspect :);
Replacing the Publisher Node
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/install/6_1_1/cluster/clstr611.html#wp87717
Hope this helps!
Rob
07-21-2009 06:38 AM
Hey Rob. I hope all is well with you my friend. Thanks for quick response. I'll take your 80 degrees in Calgary any day over this humidity in Florida this time of year lol. But I'll also take our 70 degrees in December over your minus 20 below:)
07-21-2009 05:27 AM
It HAS to be done the way you plan, you cannot restore info on different versions.
You install same exact version on new HW, restore the backup, make sure everything runs fine and then upgrade to 7.X
HTH
java
if this helps, please rate
07-21-2009 06:44 AM
Just to validate, as long as I do the way specified, there are no issues with the fact that new hardware will be on "higher" MCS servers? I.e. on new 7845's when existing pub/sub are on 7835's.
Thanks again to both.
07-21-2009 07:27 AM
No, as long as it's a supported platform and it does allow you to handle the amount of phones you have (meaning trying to load a config from 5000 phones on a 7915 would definitely be a bad idea) you can install and restore the config from the old servers into the new ones, just as Rob said, make sure to rehost the licenses to the new servers.
HTH
java
if this helps, please rate
07-21-2009 07:46 AM
Hi Daniel,
Come on buddy -30 ain't that bad ;-) My wife was in the south a few years back and the humidity almost killed her so I feel your pain!
Like our friend Java nicely noted, the move from 7835's to 7845's should not cause any issues here. The nice thing about using new boxes is that it gives you a great opportunity to perfect the build b4 going live. Great plan!
Cheers from Calgary!
Rob
11-09-2009 09:34 AM
A while ago I know
Jumping in the middle here, I`m also need to do the same HW upgrade but not SW upgrade. From the thread I understand that I need to do a DRS to a back up server, send the License files to Cisco to change the MAC address association and then do a recovery to the new HW i.e copy the "old" SW to the new HW`s
We are upgrading all our servers form 7835 to 7845
Does the DRS File contain any info regarding the MAC address, Hostname , IP address of where the original back up back came from?
My thinking is as follows
Install the new Cluster with the same CUCM SW- new IP Address
Run test phones on the new cluster- ICT if need be to Production
Send the license files to Cisco to modified the MAC address
Cut over
Shut down the production Cluster
Use the same IP address and Host name from the production cluster to the new HW cluster- CUCM 6.1.2.XXXX
install license files
Copy the DRS file the new cluster
Will this work ?
11-09-2009 11:07 AM
Hi IPT,
You didn't mention the CUCM version, so I would be careful of this note;
Prior to Cisco Unified Communications Manager Release 6.1(2), you cannot change the host name of either the publisher node or subscriber node after it is installed. If you must apply a new host name to a server, you can delete the server from Cisco Unified Communications Manager Administration (System > Server) and then reinstall the server with a new hostname. Also, be aware that a DRS backup that you take from a server with a particular hostname cannot be restored on a server (either a publisher or subscriber node) with a different hostname, even after you reinstall that node.
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/install/6_1_1/ipchange/ipchg611.html
Cheers!
Rob
Edit: I just saw that you did mention your version ...sorry! You may be okay. If it were me I would build this in an isolated Network and use the same IP's and Hostname right off the bat.
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