Reminder: Cycle Those SQL Server Error Logs

Monica Rathbun has a public service announcement:

I saw this again recently and see it too often in environments so wanted to take a second to remind everyone to cycle their error logs on a regular basis. SQL Server keeps error logs and when you reboot or restart SQL Server services the logs are cycled and a new one is created. Depending on how many logs you have configured for SQL Server to have this may include removal of the oldest log as well. Since many of pride ourselves on keeping our SQL Servers up and running, reboots may be few and far between thus our logs get large in size.

When they grow out of control it can require long wait times for the logs open to even view them. An easy way to keep this from happening is to cycle them routinely. You can easily automate these by creating a SQL Agent job to cycle the log to a new one on a regular basis whether it is monthly, weekly or even daily.

My preference is to cycle daily with 45 or so logs maintained; that way, if there are service restarts, I still have more than a month of logs.

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