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.