Jan Engelhardt wrote:
An IDE reset bringing the disk up again -- that does not sound like
it is powered down. Power down for me means: as if the plug was pulled.
Reset means "power on, initialize power on state". While shutdown in
this way, the drive has shut down and is not drawing any power. The
reset is required to enable power flow into the drive again so it comes
online. Essentially you have a transistor disconnecting the power
inside the drive, and the reset pulse flips that transistor.
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