I vividly recall a log by an operator who had a bad CDC 844 pack who proceeded to destroy 5 drives and 3 additional packs. It was detailed enough that it read like Gerard Hoffnung's "Bricklayer's Story".
When I was testing one of my RL02 drives I had a head skid on the disk. Problem was the air filter was so clogged there wasn't enough air to allow the heads to fly.
Replaced filter which allowed me to read the damaged pack with the worn down heads, then replaced the heads with a spare set. The heads themselves were worn to the point where they were angled....
Disclaimer: This drive and pack came from a Solarex plant where they controlled the silicon wafer cutters. In other words silicon dust everywhere.
Oi.
