Persistent Memory and SQL Server

Ned Otter gives us the rundown on Persistent Memory and how it can make life smoother:

SQL 2017 on Windows Server 2016 behaves the same as SQL 2016 on Windows Server 2016 – “tail of the log” is supported. However, there is no support for PMEM with SQL 2017 on supported Linux distributions (except as a traditional block store). Using PMEM with SQL 2019 on Linux supports what’s known as “enlightenment”, which allows us to place data and log files on DAX formatted volumes, thereby reducing latency considerably. SQL 2019 on Linux also support “tail of the log”.

This is one of those areas where understanding Linux versus Windows administration really pays off, at least until Windows Server supports something like enlightenment.

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