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Daily Archives: August 13, 2012

Querying the Management Data Warehouse for Disk Usage over time (Data Collector)

Querying the Management Data Warehouse for Disk Usage over time (Data Collector)

A part of every DBA’s job is to justify all those disk space requests. The phrases “I just need it” or “Trust me this database is going to grow one terabyte this year” might not convince your boss.

Many people are under the impression that disk space is cheap since they base that notion off of the shell shocker they saw on NewEgg or the weekly circular from Best Buy. If you are using consumer SATA drives from retail outlets for your production databases please do the following:
1. Update your resume
2. Apply for jobs at least 1000 miles from your current location
3. Hope the next DBA that replaces you has more common sense

We’re in the times of SANs, iSCSI, SAS drives, SSD drives and RAID architecture! You should be forking out almost the cost of your server in disk space. Unless of course losing data is an option where you work.

Now that I’ve bored you or intrigued you (or something in between) I can get to my point. There is a wonderful tool that comes with SQL Server 2008 and later called the Management Data Warehouse (MDW) also known as the Data Collector.

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