Looking for a ST419

[Jules Richardson]

Chuck Guzis wrote:
> On 29 Oct 2008 at 23:23, ethan.dicks at usap.gov wrote:
> There are some exceptions--one of which is the MFM drives used on the 
> "baby" models of the DG MV series.  Apparently (as nearly as I can 
> determine), the controller firmware looks for a specially formatted 
> track that contains the drive parameters

So they were LLF'd at the DG plant and the LLF routine never escaped into the 
wild?

I suppose there are probably a few others around like that, too. Plus lots of 
systems using Adaptec ST-SCSI bridges where the first track is reserved for 
drive geometry storage (although those can at least be LLFd out in the field 
by prodding the bridge board directly)

 >--just plonking an off-the-
> shelf drive of the same model number just doesn't work.  The other 
> exception that comes to mind are drives that have a higher rotation 
> speed than the customary 3600 RPM.

I suspect step rate may come into play with a lot of high-end systems, too. 
Lesser machines probably expected much less of the disk technology.

cheers

Jules