For Red Hat Enterprise Linux 8.2, adhere to these best practices:
- Use the tuned-adm command-line tool to set the latency-performance profile.
- Follow Microsoft’s Performance best practices and configuration guidelines for SQL Server on Linux. Add the Microsoft-recommended performance-related configuration parameters for the Red Hat Enterprise Linux operating system to the latency-performance profile.
- Change the disk label to GPT.
- Create disk partitions using the fdisk or parted utilities on storage devices. We chose the XFS file system to formatthe disks in our deployment.
- For the XFS file system to work with a DAX volume, disable RefLink. With Red Hat Enterprise Linux 8.2, the XFS file system comes with RefLink enabled by default.
- To take full advantage of PMem as a DAX volume, we recommend using a 2 MB block size for file system allocation.
- Keep all the mounted file entries in /etc/fstab to enable automatic mounting when the server reboots.