Hi,
We have a core sql database server, which have 256 GB physical memory ,and give maximum physical memory to sql server 240000 MB, sql server service startup account has locked memory privilege.
We found that the free memory is 12094108 KB,but the Page Life Expectancy counter is low,about 300.
Does anybody give some advice why sql server don't (or can't) use free memory, and how to find which parts inside sql server took up these free memory?
Many thanks.
SQL Server Version:
Microsoft SQL Server 2012 - 11.0.5532.0 (X64)
Jul 14 2014 15:00:27
Copyright (c) Microsoft Corporation
Enterprise Edition: Core-based Licensing (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1)
And this is a clustered sql instance and as a primary node of ag.
Attachments are some dmv results.