diskspd

 https://github.com/Microsoft/diskspd/releases/latest/download/DiskSpd.zip (aka https://aka.ms/getdiskspd).

Diskspd.exe -b8K -d60 -h -L -o2 -t4 -r -w30 -c100M c:\test\io.dat > c:\test\output.txt

SQL SERVER How to create a select only user on a database

 use etrace

CREATE USER svc_dwhread FOR LOGIN svc_dwhread;

EXEC sp_addrolemember 'db_datareader'', 'svc_dwhread'