Monthly Archive: August 2016

Aug 09

SOLVED: “There have been <N> misaligned log IOs which required falling back to synchronous IO. The current IO is on file <logfilename>.” – Trace Flag 1800

Do you have an Availability Group set up that is seeing some strange latencies or behaviors? Have you looked at the error logs on your replicas and seen this? There have been <N> misaligned log IOs which required falling back to synchronous IO. The current IO is on file <LogFileName>. What the heck does this …

Continue reading »