hi denny - thanks for your reply
in answer to your questions:
- we don't actually have any gtm's in place at the moment. just 2 3dns units
- we require the ability to perform a manual failover rather than it being automatic
basically, all we're trying to achieve is a mechanism to push a button which fails over our web sites (hosted in datacentre 1) to a maintenance page (in datacentre 2) explaining that we are experiencing technical difficulties
one idea was to make use of the manual resume option. if you had your maintenance page as the primary resource and your web sites as the secondary resource but ensure the primary has failed over to the secondary! then use manual resume to fail back on to the primary (which is actually the maintenance page)
hope that makes sense!
i'm going to try and get an eval licence for gtm so i can play around with the configs on our test platform. at the minute, i'm working from memory which is very difficult