Scheduled Maintenance
At 8:00pm PST last night (Tuesday March 7) two of our servers were taken offline for a 6 hour scheduled maintenance window, as part of Rackspace's standard infrastructure upgrades. This caused confusion for some clients because we failed to provide you with proper notification. Rackspace had scheduled the maintenance back in February 21, but we incorrectly interpreted the scope of the maintenance and didn't realize it would effect these two servers, so we did not notify the clients effected. When the servers went offline, we immediately engaged Rackspace support staff and monitored the entire maintenance process until it was complete.
This was a controlled and scheduled maintenance which is occasionally necessary for upgrades. But we sincerely apologize for not notifying you in advance. We will strive to be much more careful about that in the future.
Infrastructure Upgrades
It's important to have realistic expectations that no server infrastructure can guarantee 100% uptime, there are always points of failure that even the best planning cannot avoid. But we are committed to creating as much redundancy as possible in order to limit downtime from both unexpected failures and scheduled maintenance. Last week we began the process of upgrading our server infrastructure again to add more redundancy and increase speed. Hopefully we will be able to bring these new redundant servers online in our web server cluster in the coming week. This should cause no downtime (although network changes always have some risk). You should just see more performance in coming days and have greater confidence that your site will continue operating with more redundancy going forward.