Shouting at Disk Drives with DTrace
Bryan Cantrill · Demo · YouTube title: Shouting in the Datacenter
Why it's here
It is the go-to viral demo whenever HN discusses vibration, acoustic attacks, or sound affecting hard drives.
What it covers
A two-minute 2008 clip from Sun's Fishworks team in which Brendan Gregg uses DTrace to show disk latency spiking while he shouts at a rack of drives. Bryan Cantrill narrates the demonstration.