topic WCS and High Availability in Wireless https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754021#M23475 <HTML><HEAD></HEAD><BODY><P>My database takes about 20 minutes ... its SLLLLLOOOOOOOOOOOWWWWWWW</P></BODY></HTML> Thu, 29 Sep 2011 15:40:14 GMT George Stefanick 2011-09-29T15:40:14Z WCS and High Availability https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754014#M23468 <P>Hi,</P><P></P><P>what are the requirements to run active and standby WCS-server in different locations?</P><P></P><P>I found the following note from Release 7.0.172.0</P><P></P><P>"A reliable high-speed wired network must exist between the primary WCS and its backup WCS"</P><P></P><P>Thanks in advance</P><P>Matthias</P> Sun, 04 Jul 2021 03:49:53 GMT https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754014#M23468 schuetzm 2021-07-04T03:49:53Z WCS and High Availability https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754015#M23469 <HTML><HEAD></HEAD><BODY><P>You will want to make sure you have a reliable link between both boxes. I have a set up today with one box on the east coast and one on the west and it works just fine with a T1. I dont think I ever seen a specific spec sheet on the exact specs. </P><P></P><P>I do know there is a heart beat between the boxes. When that is lost, the seconadry kicks in.</P></BODY></HTML> Wed, 28 Sep 2011 00:36:19 GMT https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754015#M23469 George Stefanick 2011-09-28T00:36:19Z WCS and High Availability https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754016#M23470 <HTML><HEAD></HEAD><BODY><P>Just a note for you guys... when testing the failover, if you can't physically shut your server down and try stopping the WCS service it won't failover automatically by default.</P><P></P><P><A href="http://www.cisco.com/en/US/docs/wireless/wcs/7.0/configuration/guide/7_0main.html#wp1072642">http://www.cisco.com/en/US/docs/wireless/wcs/7.0/configuration/guide/7_0main.html#wp1072642</A></P><P></P><P>I've seen WCS occasionally lock up and need to be manually stop/started to come back to life.&nbsp; If this happens, the auto failover isn't actually automatic unless you run the command "nmsadmin.bat -switchover stop".</P><P></P><P>Surely auto failover on service down makes more sense than failover on server down?&nbsp; </P><P>Anyone aware of any reasoning behind this not being default the behaviour?</P></BODY></HTML> Thu, 29 Sep 2011 08:35:20 GMT https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754016#M23470 Rob Simkins 2011-09-29T08:35:20Z WCS and High Availability https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754017#M23471 <HTML><HEAD></HEAD><BODY><P>LOL.... I did know that Iblogged about it. I LOL becuase i wonder the same thing! <SPAN __jive_emoticon_name="happy" __jive_macro_name="emoticon" class="jive_macro jive_emote" src="https://community.cisco.com/4.5.4/images/emoticons/happy.gif"></SPAN></P><P></P><P><A class="jive-link-external-small" href="http://www.my80211.com/cisco-wcs/">http://www.my80211.com/cisco-wcs/</A><SPAN> </SPAN></P></BODY></HTML> Thu, 29 Sep 2011 12:26:43 GMT https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754017#M23471 George Stefanick 2011-09-29T12:26:43Z WCS and High Availability https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754018#M23472 <HTML><HEAD></HEAD><BODY><P>Nice, I'm now following you on twitter and feedly - consider me a tech stalker...</P><P></P><P>Also.... If you are upgrading a pair of primary WCS servers you'll need to merge all controllers onto a single SNMP community that covers both WCS servers.&nbsp; This is because the secondary WCS inherits the community string from the primary.&nbsp; </P><P></P><P>What happens when several primary servers are on different subnets?&nbsp; You need to open up the netmask on the SNMP community config. This could end up being 0.0.0.0 if you have a weird setup.&nbsp; If you dont do this the controllers wont speak to the secondary WCS and will appear down...</P><P></P><P>Security concern?</P><P></P><P><SPAN __jive_emoticon_name="wink" __jive_macro_name="emoticon" class="jive_macro jive_emote" src="https://community.cisco.com/4.5.4/images/tiny_mce3/plugins/jiveemoticons/images/spacer.gif"></SPAN></P></BODY></HTML> Thu, 29 Sep 2011 13:33:29 GMT https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754018#M23472 Rob Simkins 2011-09-29T13:33:29Z WCS and High Availability https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754019#M23473 <HTML><HEAD></HEAD><BODY><P>I always lead with SNMP v3 so we limited the risk a bit rather then using 1 and 2 ...</P></BODY></HTML> Thu, 29 Sep 2011 14:42:57 GMT https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754019#M23473 George Stefanick 2011-09-29T14:42:57Z WCS and High Availability https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754020#M23474 <HTML><HEAD></HEAD><BODY><P>Good point! I've just migrated, pretty simple task <SPAN __jive_emoticon_name="happy" __jive_macro_name="emoticon" class="jive_macro jive_emote" src="https://community.cisco.com/4.5.4/images/emoticons/happy.gif"></SPAN></P><P></P><P>Matthias - The traffic you need to worry about is going to be the sync and failover/failback.&nbsp; This could be the full WCS database backup file which is usually 100mb+.&nbsp; I'm not sure what the sync period is though.</P></BODY></HTML> Thu, 29 Sep 2011 15:35:19 GMT https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754020#M23474 Rob Simkins 2011-09-29T15:35:19Z WCS and High Availability https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754021#M23475 <HTML><HEAD></HEAD><BODY><P>My database takes about 20 minutes ... its SLLLLLOOOOOOOOOOOWWWWWWW</P></BODY></HTML> Thu, 29 Sep 2011 15:40:14 GMT https://community.cisco.com/t5/wireless/wcs-and-high-availability/m-p/1754021#M23475 George Stefanick 2011-09-29T15:40:14Z