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Using xp_ReadErrorLog in SQL Server 2005

I would like to share some interesting parameters I found for the undocumented extended stored procedure xp_ReadErrorLog. In doing some testing with this extended stored procedure I found four very interesting parameters. Adding to some of the articles already on the web that discuss undocumented stored procedures, in this article I will explain my testing, use and some examples of the procedure.

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Question of the Day

How Long is a Long I/O?

In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?

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