I have read the KB article on data centres : https://helpx.adobe.com/uk/analytics/kb/determining-data-center.html
I want to use the regional data centre to track rsa-oak-dev & rsa-oak-live. I understand that the correct data centre from me to use in the UK is rsa.d3.sc.omtrdc.net based on the article above. I’ve not used this data centre before. Can you confirm that rsa.d3.sc.omtrdc.net is enabled and ready for me to use?
As long as you've confirmed that your Analytics logged in domain is:
www3.omniture.com or sc3.omniture.com
then you're good to go!
Another measure you can double check is to open a command prompt and ping the domain in question.
Pinging the above domain shows a response, so data should be collected without any issue.
Excellent - Thanks