I have just adopted a SQL Server 2014 Web Edition instance, hosted on Rackspace; my main objective is that I need to improve performance.
What screamed out to me is that this server only has 8GB of RAM installed. Further to this, max server memory was set to the default of 2TB (2147483647MB). This obviously needs to be brought down to a figure less than the total available RAM.
Usually, I would provision 4GB RAM solely for the O/S. However, this would be 50% of the RAM.
As I am new to Rackspace, I am unsure whether the recommended provision of RAM for non-SQL server processes would be different.
Any help or comments would be greatly appreciated.
Many thanks, Stevie
Rackspace or VM ,below would be the formula to start with,if only SQLServer is running on the box.
below is a recommendation from :Glenn Berry
Physical RAM MaxServerMem Setting
2GB 1500
4GB 3200
6GB 4800
8GB 6400
12GB 10000
16GB 13500
24GB 21500
32GB 29000
48GB 44000
64GB 60000
72GB 68000
96GB 92000
128GB 124000
The above recommendation is a good place to start with,if you are not running SSIS,SSRS.. and other things on same box..
Jonathan Kehiyas recommends to monitor below counters ,even after configuring memory settings here :How much memory does my SQL Server actually need?
SQL Server:Buffer Manager\Page Life Expectancy
SQL Server:Buffer Manager\Page reads/sec
Physical Disk\Disk Reads/sec