topic Re: Install ACS 5.X backup in Network Access Control https://community.cisco.com/t5/network-access-control/install-acs-5-x-backup/m-p/1743288#M246955 <HTML><HEAD></HEAD><BODY><P>Hi Javier,</P><P></P><P> </P><P></P><P>If I understand you correctly, the current ACS is on 5.2, whereas the new ACS is on 5.1. Since they’re on different versions, setting them in a distributed system (high availability as you said) won’t work; they need to be on the same version and same patch level. So, you’ll need to upgrade the new ACS to 5.2 first and then register it to the current ACS (assumingly the Primary ACS). </P><P></P><P> </P><P></P><P>Regards,</P><P></P><P>Cam</P></BODY></HTML> Mon, 05 Sep 2011 22:21:35 GMT Cam Le 2011-09-05T22:21:35Z Install ACS 5.X backup https://community.cisco.com/t5/network-access-control/install-acs-5-x-backup/m-p/1743287#M246943 <P>Hello friends</P><P></P><P>I have ACS 5.2 in standalone mode in operation and need not incorporating a second server for high availability ACS, the new ACS is a version 5.1</P><P></P><P>What should I do first, upgrade the ACS version 5.2 and created the high availability or high availability and get up after the upgrade?</P><P></P><P>regards</P> Mon, 11 Mar 2019 01:22:30 GMT https://community.cisco.com/t5/network-access-control/install-acs-5-x-backup/m-p/1743287#M246943 jmecklenburg 2019-03-11T01:22:30Z Re: Install ACS 5.X backup https://community.cisco.com/t5/network-access-control/install-acs-5-x-backup/m-p/1743288#M246955 <HTML><HEAD></HEAD><BODY><P>Hi Javier,</P><P></P><P> </P><P></P><P>If I understand you correctly, the current ACS is on 5.2, whereas the new ACS is on 5.1. Since they’re on different versions, setting them in a distributed system (high availability as you said) won’t work; they need to be on the same version and same patch level. So, you’ll need to upgrade the new ACS to 5.2 first and then register it to the current ACS (assumingly the Primary ACS). </P><P></P><P> </P><P></P><P>Regards,</P><P></P><P>Cam</P></BODY></HTML> Mon, 05 Sep 2011 22:21:35 GMT https://community.cisco.com/t5/network-access-control/install-acs-5-x-backup/m-p/1743288#M246955 Cam Le 2011-09-05T22:21:35Z Re: Install ACS 5.X backup https://community.cisco.com/t5/network-access-control/install-acs-5-x-backup/m-p/1743289#M246970 <HTML><HEAD></HEAD><BODY><P>Thanks Cam Le for you answer!</P><P></P><P>Regards</P></BODY></HTML> Tue, 06 Sep 2011 14:26:07 GMT https://community.cisco.com/t5/network-access-control/install-acs-5-x-backup/m-p/1743289#M246970 jmecklenburg 2011-09-06T14:26:07Z