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In architecting a database server system , an important aspect is the assumption of a 24 x 7 database server environment .
The 24 x 7 model is becoming more prevalent – not only in ecommerce , but also in 9-5 businesses – who require access to database servers throughout the 24 hr period – to deal with ETL , reconciliation and a full range of summarisation\pruning tasks
It is becoming difficult to define the traditional maintenance window .
Some areas in which online utilities are now defined. And should be considered in managing a 24 x 7 (or close as possible) system
a)Statistics optimisation – whether commited as a regular job or as AUTO UPDATE
b)Index Reorganisation and Creating Indexes – regular maintenance and requests from developers to create\adjust indexes
c)Backups
d)Bulk Loading -
e)Monitoring/Tuning/Resource Management – queries consume resources. Use tools to identify inefficient queries. Various methods are available in SQL server – consider Profiler, DMV
Source:Jack Vamvas (http://www.sqlserver-dba.com)Author: Jack Vamvas (http://www.sqlserver-dba.com)
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