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Installing a new Domain with Windows Server

on November 08, 2017

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Using SCOM to monitor SQL Error Logs

Our SQL DBA reported that occasionally he will see errors in the SQL Error Logs similar to: SQL Server has encountered 45 occurrence(s) of IO requests taking longer than 15 seconds to complete on file [T:MSSQLDatatempdev6_Data.NDF] in database [tempdb] (2). The OS file handle is 0x000005B4. The offset of the latest long IO is: 0x0000000c7b2000 Monitoring for this alert at first sounded simple, but as I dug into it I realized it could be much more difficult than I expected. First off, this error is reported in the SQL Error Logs and only in the SQL Error Logs, so we cant simply use the NT Event log to alert us. Secondly, depending on how you install SQL, these error logs could be anywhere on the system. And lastly, this is needed to be monitored on SQL 2000 and SQL 2005 systems, so xp_ReadErrorLog won’t work for us. So the breakdown seems fairly simple: find out where the logs are, use the text log monitor, and search for the string. 1. Find out where the SQL Error logs are store...

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Installing a new Domain with Windows Server

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