In order to bring about the changes discussed here previously, I have to do some testing that requires me to take the grid offline. As you can see in the Trouble Report on the Grid Status page, I recently took the grid down to test the new ArribaSim distro. That testing was sucessful but there are a few more tests to run and so, over the next several days, the grid may be down at times. These outages will likely last a few hours each.
You can always check the Grid Status page on this site. I also announce planned outages on my Google+ page.
You can always check the Grid Status page on this site. I also announce planned outages on my Google+ page.