The Platform Engineering team at Stack Overflow is planning to perform SQL Server failovers to facilitate required maintenance. We plan to perform this maintenance in a much less disruptive fashion than previous maintenance sessions. However we may require the sites to be in read-only mode for up to 90 minutes.
We need to perform software patching in order to keep our systems up to date and secure. Some of this work will require our servers to be failed over and rebooted. Since the last maintenance period we have completed work which we believe will enable us to perform these actions in a less obtrusive fashion than in previous maintenance windows. This is the first major maintenance since that work was completed–our plan will be to avoid a network-wide read-only window, but we are including a contingency plan should we encounter unexpected problems to fall back to the previous methodology, which would require the network to be placed into read only mode for up to 90 minutes.
Questions or concerns?
Please post a comment or answer below; We'll do our best to address any concerns between now and the maintenance window.