{"id":1057,"date":"2008-04-19T15:05:00","date_gmt":"2008-04-19T15:05:00","guid":{"rendered":"\/blogs\/paul\/post\/Conference-Questions-Pot-Pourri-How-to-create-Agent-alerts.aspx"},"modified":"2017-04-13T09:52:01","modified_gmt":"2017-04-13T16:52:01","slug":"conference-questions-pot-pourri-7-how-to-create-agent-alerts","status":"publish","type":"post","link":"https:\/\/www.sqlskills.com\/blogs\/paul\/conference-questions-pot-pourri-7-how-to-create-agent-alerts\/","title":{"rendered":"Conference Questions Pot-Pourri #7: How to create Agent alerts"},"content":{"rendered":"

<\/p>\n

\nMany times I've been asked to do a blog post about creating Agent alerts, and given that today I demo'd it as part of our Accidental DBA workshop at Connections, it seemed a good time to do the blog post too!\n<\/p>\n

\nI demo this in the context of alerting a DBA when an 823 or 824 IO error occurs. One of my early blog posts (see here<\/a>) explains what these are, as well as providing a corrupt database that you can use to see these errors happening.\n<\/p>\n

\nThe idea is that I want to know as soon as<\/em> an IO error occurs so I can start recovering and take preventative action to stop it happening again. I don't want to rely on users telling me when a query hits an IO error, and I don't want to have to scan the SQL error logs to find them. So I'm going to create an alert.\n<\/p>\n

\nThe first step is to fire up Management Studio and make sure SQL Server Agent is running. Next we need to make there's actually an Operator defined – so the new alert has someone to actually alert! – so we'll use the New Operator wizard (see below for how to get there).\n<\/p>\n

\n\"\"\n<\/p>\n

\nIn the New Operator Wizard that appears, I've created an operator named 'SysAdmin<\/em>'. There are three Notification Options you can use – email, net send, and pager. I've setup SysAdmin to use net send to my local machine. You need to make sure the Messenger<\/em> service is enabled otherwise net send will not work. Also, be aware the net sends will NOT work unless the machine has a network connection – even if the net send source and destination are the same machine! Given the various issues with net send, it's better to use email or pager alerts – but for the purposes of this blog post its the easiest option.\n<\/p>\n

\nNow let's create the new alert – using the New Alert wizard (see the below for how to get there).\n<\/p>\n

\n\"\"\n<\/p>\n

\nIn the New Alert Wizard that appears, I've created an alert named 'IO Errors<\/em>' for all severity 24 errors on all databases. Below is a portion of the General tab of the wizard showing these settings:\n<\/p>\n

\n\"\"\n<\/p>\n

\nI also need to specify what happens. In the Response tab of the wizard I've set the SysAdmin operator to be notified using net send. Again, see below.\n<\/p>\n

\n\"\"\n<\/p>\n

\nIn the Options tab I've checked the box to include the error text in the net send.\n<\/p>\n

\nNow let's test it. Using the database called 'broken' that I provide as an example (see here<\/a>), I'll force an IO error to occur. In my query window I get:\n<\/p>\n

\n\t<\/p>\n

\n\tSELECT<\/font> <\/font>*<\/font> <\/font>from<\/font> broken<\/font>..<\/font>brokentable<\/font>;
\n\t<\/font><\/font>GO<\/font>\n\t<\/p>\n

\t<\/font><\/p>\n

\n\tMsg 824, Level 24, State 2, Line 1<\/font>\n\t<\/p>\n

\n\tSQL Server detected a logical consistency-based I\/O error: incorrect checksum (expected: 0x7232c940; actual: 0x720e4940). It occurred during a read of page (1:143) in database ID 10 at offset 0x0000000011e000 in file 'C:\\Program Files\\Microsoft SQL Server\\MSSQL.1\\MSSQL\\DATA\\broken.mdf'. Additional messages in the SQL Server error log or system event log may provide more detail. This is a severe error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online.<\/font>\n\t<\/p>\n

\t<\/font><\/font>\n<\/p><\/blockquote>\n

\nAnd a few seconds later I get the net send:\n<\/p>\n

\n\"\"\n<\/p>\n

\nPretty cool!\n<\/p>\n

\nYou can also use the WMI Provider to do this – see Creating a SQL Server Agent Alert by Using the WMI Provider for Server Events<\/a>.\n<\/p>\n

<\/font><\/p>\n","protected":false},"excerpt":{"rendered":"

Many times I've been asked to do a blog post about creating Agent alerts, and given that today I demo'd it as part of our Accidental DBA workshop at Connections, it seemed a good time to do the blog post too! I demo this in the context of alerting a DBA when an 823 or […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,30,31,53,63,85],"tags":[],"class_list":["post-1057","post","type-post","status-publish","format-standard","hentry","category-conference-questions-pot-pourri","category-corruption","category-database-maintenance","category-io-subsystems","category-page-checksums","category-sql-agent"],"yoast_head":"\nConference Questions Pot-Pourri #7: How to create Agent alerts - Paul S. 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