In a Ubuntu 14.04 server I am experiencing a massive hard disk activity which has no apparent justification: it comes as a burst, it lasts a few minutes and then disappears. It consumes system resources and slows down the whole system.Is there a (command-line) tool which can be used to monitor the disk activity, listing the processes that are using the disk and the files involved? Something like htop for the CPU.
Monitor hard disk activity
ubuntu;command line;hard disk;monitoring
For checking I/O usage I usually use iotop.It's not installed by default on the distro, but you can easily get it with:sudo apt-get install iotopThen launch it with root priviledges:sudo iotop --onlyThe --only option will show only the processes currently accessing the I/O.