AAA-related SAM tests were completely broken for a couple of days. This turned out to be because when the manager was rebooted it came back without an IPv6 address. I will go back to watching for intermittent failures related to Echo access (including via AAA). I will try running SAM tests by hand. Ian J also asked me for ways to test the Vector Read, which I feel may be related to these SAM test failures (and likely many other failures and inefficiencies in CMS jobs at RAL). I'm hoping we can try this in a test machine in the next 1-2 weeks.

I also need to continue following up the multiple repeat queries appearing in the redirector logs (which are probably causing a problem, but are definitely filling up the machine with logs within ~20 days).

The IPv6 side of the firewall change was done yesterday. I did a quick test of transfers from Nebraska and Florida before and after the change. The rate after the change was better.

270MB file from Florida - before 42s, after 12 s.

4GB file from Nebraska - before 201s, after 141s.

The proof of the pudding will be the IPv4 change (Monday 8th March).

With Darren I have moved the AAA Vande dashboard into the new area. I am in touch with Christos and planning to add a new plot here to monitor requests to the redirector machine based at RAL. This will be an incomplete picture, but better than nothing.