Mailinglist Archive: opensuse (1196 mails)

["Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>]

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On Sunday, 2010-01-24 at 15:12 +0100, Per Jessen wrote:

> Per Jessen wrote:

> > > > Yep. You have to go pretty far back for that to be a realistic
> > > > option. Pre-IDE days, I would say.
> > >
> > > Maybe not so far back. Only since SMART appeared, and did remapping
> > > in hardware.
> >
> > IDE (PATA) drives have always done remapping of bad blocks themselves.
> > SMART is just the monitoring part of that.

I'm not sure of that. I only learnt of that feature after the turn of the 
century.


> > > Remember that the msdos FAT checkdisk utility did this remapping, on
> > > the filesystem, by default, since day one: it was an  absolute
> > > necessity for floppies, and even hard disks. The first hard
> > > disk I owned (32MB) came with a label listing bad blocks.
> >
> > Presumably, none of those were IDE/ATA drives?

No, the 32MB unit is pre-ATA, intelligence in the driver card. Step motor.


> Just clarify - when I said pre-IDE, I meant disks with ST-506 or ESDI
> interfaces, where the actual disk controlling logic sat on a disk
> controller, as opposed to the ATA/IDE drives with integrated
> electronics (IDE).

Yes, but I'm not sure that the IDE HDs in the 90's had remapping 
capability. Maybe some had, but I don't remember the units I used or owned 
(80 MB, 500 MB, 8GB...) having it. It was handled by MsDos checkdisk.

Maybe it had to be activated? :-?

- -- 
Cheers,
       Carlos E. R.

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