NUMA Node Count

Denny Cherry shows us how to find the number of NUMA nodes a SQL Server has:

The next way to see what your NUMA configuration is, is to look at the ERRORLOG file. Every time SQL Server is started it will log the NUMA configuration towards the beginning of the ERRORLOG file. That line will look something like this example.

Server Node configuration: node 0: CPU mask: 0x00000000000000ff:0 Active CPU mask: 0x00000000000000ff:0. This message provides a description of the NUMA configuration for this computer. This is an informational message only. No user action is required.

Denny shows four different ways of getting this answer, and then provides some general advice on the maximum number of nodes you probably want.

Related Posts

Database Migration With dbatools

Jess Pomfret shows how easy it is to migrate databases from one SQL Server instance to another using dbatools: Now that there are no connections we can move the database.  Depending on the situation it might be worth setting the database to read only or single user mode first. In my case, I had the […]

Read More

Working With Azure SQL Managed Instances

Jovan Popovic has a couple of posts covering configuration for Azure SQL Managed Instances.  First, he looks at how to configure tempdb: One limitation in the current public preview is that tempdb don’t preserves custom settings after fail-over happens. If you add new files to tempdb or change file size, these settings will not be preserved after fail-over, and […]

Read More


May 2016
« Apr Jun »