What is the best practice for adding a downtime page for SDM 14.1?
We are going to be upgrading Service Catalog soon, which requires us to quiesce Service Desk. We would a downtime page to tell users the system is down, ETA for service restoration etc.
14.1, Adv Availability
F5 load balancer for user traffic on application servers
IIS 8 running on port 80
10+ application servers
I was thinking of using the IIS URL rewrite module to redirect to a maintenance page, but wanted to see what the user groups think. I would prefer to automate turning on/off the maint page which can be troublesome with the URL rewriter.
I would think using the F5 would be the best way since there is a procedure for adding a custom health monitor here:
How to Configure the F5 Load Balancer for CA Service Desk Manager - CA Service Management - 14.1 - CA Technologies Docum…
Then a custom iRule could be created using HTTP::redirect to the Downtime page you create for this purpose. When SDM comes out of quiesce, then the F5 would return to normal load balancing?
Did J.W's reply the other day help?
HI J_W, Paul,
Yes, we internally came to the same conclusion after I posted my question. I am marking this as answered/correct.
John W (the other JW)
To clarify, the Health Monitor provided by CA is used with the F5 to determine if a SDM application server should be marked as up or down in the pool. The F5 has a feature (not provided by CA) that if all hosts are marked down then redirect user to maintenance page.