In high mission-critical environments, ensuring high level of availability is a prerequisite and usually IT department addresses required SLAs (the famous 9’s) with high available architecture solutions. As stated by Wikipedia: availability measurement is subject to some degree of interpretation. Thus, IT department generally focus on uptime metric whereas for other departments availability is often related to application response time or tied to slowness / unresponsiveness complains. The latter is about application throughput and database locks may contribute to reduce it. This is something we are constantly monitoring in addition of the uptime in my company.
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dbachecks and AlwaysOn availability group checks
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When I started my DBA position in my new company, I was looking for a tool that was able to check periodically the SQL Server database environments for several reasons. First, as DBA one of my main concern is about maintaining and keeping the different mssql environments well-configured against an initial standard. It is also worth noting I’m not the only person to interact with databases and anyone in my team, which is member of sysadmin server role as well, is able to change any server-level configuration settings at any moment. In this case, chances are that having environments shifting from our initial standard over the time and my team and I need to keep confident by checking periodically the current mssql environment configurations, be alerting if configuration drifts exist and obviously fix it as faster as possible.