Monitor

Install packages

apt install sysstat iotop -y

iostat

# Output all device IO information
iostat -dxm 2
 
# Output all device partition information
iostat -dpxm 2
 
-d: device
-p: partition
-x: detail
-m: use MB unit to display information
 2: refresh time

watch

watch -n 1 -cdt ls -alh --color