[CentOS] smartd and palimpsest

On Fri, 12 Aug 2011, Robert Heller wrote:

> The disk's *firmware* updated itself.  So long as the *disk* is powered
> up and spinning, its *firmware* is 'running' (or runs when the disk is
> accessed or something like that).  Modern disks are a long, long way
> from the simple MFM drives of the 1970s (which presented little more
> than a buffered interface to the drive mechanism and read/write heads
> to the host controller -- eg little more than a simple floppy disk
> drive) -- modern disks have actual embedded micro-processors on them
> doing various stuff, including monitoring and logging things like
> sector errors, drive temp., and so on.

So does accessing some of the smart data cause any disk i/o 
at all, or is this all done from directly firmware?

Kind Regards,

Keith Roberts

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