Spinning up RL02 w/o head load ? (was Cleaning RK05 packs)

Robert Armstrong bob at jfcl.com
Fri Jan 6 22:08:06 CST 2017

>Paul Koning <paulkoning at comcast.net> wrote:
>one would think unplugging the power to the head actuator coils  ...

  One might think that, and that plan works for an RK05, but an RL02 is
smarter.  Unless the heads go on cylinder within a few seconds of the head
load signal, the drive logic just faults and spins down again.  Not very
useful...  What's needed is a way to stall or fake out the drive startup
state machine logic.


More information about the cctalk mailing list