How to write errors in Error Log? A customer asked this in my performance tuning workshop, and here is how to add your own messages to the SQL Server log.
SQL SERVER – Parallel Redo on AlwaysOn Secondary – DIRTY_PAGE_TABLE_LOCK
Redo lag and high DIRTY_PAGE_TABLE_LOCK waits hit a client’s AlwaysOn secondary. Here is how Parallel Redo in SQL Server 2016 causes them and what to do.
SQL SERVER – Unable to Bring SQL Cluster Online – Reason: The Account is Disabled
After security hardening, a client’s SQL cluster resource sat in Online Pending, then failed: the account is disabled. Here is how we found and fixed it.







