Upgrading from ACS 3.3 to ACS 4.0

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Apr 2nd, 2010
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Thanks

Steve Chapman

Correct Answer by Jagdeep Gambhir about 6 years 11 months ago

Steve,

Both ACS remian up and running all the time. Its the NAS (AAA-client) that sends request to backup acs if there is no response from primary acs. If NAS has a feature of sending request in round-robin , ACS will handle it.



Regards,

~JG


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mustang2v Fri, 04/02/2010 - 08:00
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We upgraded our ACS from 3.2 to 4.2 about a year ago.  I worked closely with Cisco Tac on this.  I had to give to give them my ACS db and they converted/upgraded it from 3.2 to 4.2.  What i had to do is setup a seperate server with the new 4.2 code on it and then import the data Cisco worked on.  After ensuring the data was sound I stopped the services on my backup production ACS server, upgraded the software, had my seperate server then push its data to the my backup ACS and verify data integrity once again.  Then stopped the services on my primary production server, started the services on my backup ACS server, upgraded the software on my primary, replicated the data from my backup to my primary, check data once more, and then started the services on my primary.  Then setup the replication from primary to backup and verified it worked.  There might be better ways but that is what worked for me.


Kevin Knight

Jagdeep Gambhir Fri, 04/02/2010 - 08:18
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Hi Steve,

It is not that hard, but before you start make sure to take a back up of current acs and keep it on a save location. Check the release notes and see windows machine support 4.x version.


To upgrade you need to run setup .exe and hit ..next..next. During this process  you will see a check box stating "Do you want to keep existing database", make sure you check that else we will loose our configuration.


You can also call TAC to get it upgraded for you.



Regards,

~JG


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stevechapman_2 Fri, 04/02/2010 - 11:03
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We are upgrading our 3.3 to 4.0 also buying a 2nd 4.0 new.  I think I will see if tac can convert what I have now so I can bring it up on our new server then test before removing the 3.3. 


Other note does acs support round robin so I can have both of the up and running? or is it best to have one sit as a backup?


thanks for your input.


Chappy

Correct Answer
Jagdeep Gambhir Sat, 04/03/2010 - 05:23
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Steve,

Both ACS remian up and running all the time. Its the NAS (AAA-client) that sends request to backup acs if there is no response from primary acs. If NAS has a feature of sending request in round-robin , ACS will handle it.



Regards,

~JG


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