Configure your disk and lun setup for SQL Server

When setting up your server remember to set up a disk partition structure that is meant for SQL server. Just to be clear, you don’t need more than one disk partition to install and get SQL server to run, but if you would like to configure a disk setup that support the internal architecture ofContinue reading “Configure your disk and lun setup for SQL Server”

Snowflake review

Snowflake has taken the cloud analytic storage and compute market by storm and for a good reason. The time to market, simplicity and cheap storage is all appealing when it comes to choosing your storage and compute engine for analytics. In this review we will dive a little deeper into the software and what itContinue reading “Snowflake review”

The Troublesome Heaps

Heap fragmentation is the degree of “out of order extents” and are given by avg_fragmentation_in_percent in sys.dm_db_index_physical_stats. This means that when SQL server allocate pages in bulks of 8 pages per bulk that is called extents. Each page gets a page number and is ordered in the IAM. When a row gets written to aContinue reading “The Troublesome Heaps”

Always truncate your staging environment in a database

Often when we are met by customers struggling with performance, we see staging environments that are existing more or less as an archive or a copy of the source. Its uncertain why a staging environment is so often handled this way, but it may be a misunderstanding originating from some non-technical reference books like “Kimball’sContinue reading “Always truncate your staging environment in a database”

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