Tim Radney (@tradney) of SQLskills discusses addressing high severity errors in SQL Server – those with high severity (19-25) and the dreaded I/O error 825.
Updated July 23, 2014 : Aaron Bertrand (@AaronBertrand) of SQL Sentry warns about a parallelism bug in SQL Server 2012 and 2014 that could lead to data loss following online index rebuilds.