How do I measure IOPS of a running Linux server? I know that the theoretical IOPS of a SATA drive is around 90 and enterprise 10k SAS/FC disk is 180. I want to know how much my running system is using currently?
Currently I am using iotop and iostat. But both utilities do not give the IOPS number.
btw, this question is not a duplicate of this. I am not looking for benchmarking my storage system, but figure out how much IOPS is being used by my current system.