What is a good value for Microsoft SQL Server page life expectancy, and if the value is low, does that mean I need more server memory?.
Page Life Expectancy is the number of seconds a page will stay in the buffer pool without references. In simple words, if your page stays longer.
According to sp_BlitzFirst®'s diagnostics, Page Life Expectancy is under 5 minutes right now. This means SQL Server can only keep data pages in memory for that many seconds after reading How much memory does the server have?.
PaulRandal talks about SQL Server Page Life Expectancy: what it is, The definition of PLE is the expected time, in seconds, that a data file.
Microsoft recommends a minimum target for page life expectancy of seconds . This means that any given page in memory is kept in the buffer for five minutes.
Checking out the Page Life Expectancy (PLE) counter is a great way to If you find this value consistently low it does not mean you need to.
Page Life Expectancy isn't what you think The Buffer Manager:Page Life Expectancy counter is calculated by What does this mean?.
You basically asked, "What should I do when Page Life Expectancy changes?" My answer: nothing. I don't start by looking at Page Life.