Availability

Technical Article

Monitoring SQL Servers Availability

  • Article

How many SQL Server instances are you running? Do you ever have customers calling you stating that their application is not working, then when you research the problem you find that the instance that supports their application is unavailable? Have you ever had someone mistakenly shutdown the SQL Agent service and forget to restart it, causing a number of scheduled jobs to not be run? One of the tasks of a DBA is to monitor the availability of all SQL Server instances and services.

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2006-08-10

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SQLServerCentral Article

Server Consolidation

  • Article

Are you thinking about consolidating your SQL Servers on to fewer machines? It is an interesting idea and one that is definitely more possible with SQL Server 2005 and 64-bit servers. Steve Jones takes a look at some of the pros and cons of moving to fewer servers.

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2006-03-15

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Technical Article

Rebuilding SQL Server Cluster Nodes

  • Article

Active/Passive SQL Server 2000 clustering gives more reliability and fault tolerance to Production SQL Server environments. When a failure occurs, all of the resources fail over from the active node to the passive node and make the passive node active. This article explains how to rebuild the node that failed and attach it back to the cluster.

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2005-02-10

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Question of the Day

Adding new column with DEFAULT II

Which number did the two COUNT(*) return:

DROP TABLE IF EXISTS #tmp
CREATE TABLE #tmp (id INT NOT NULL)

INSERT INTO #tmp (id) 
SELECT gs.value
  FROM GENERATE_SERIES(1, 5) AS gs

ALTER TABLE #tmp ADD my_value INT NOT NULL CONSTRAINT df_tmp_my_value DEFAULT 1

SELECT COUNT(*)  FROM #tmp AS t WHERE my_value = 1

ALTER TABLE #tmp DROP CONSTRAINT df_tmp_my_value

ALTER TABLE #tmp ADD CONSTRAINT df_tmp_my_value DEFAULT 2 FOR my_value

SELECT COUNT(*)  FROM #tmp AS t WHERE my_value = 1

See possible answers