This message is from the T13 list server.
Why is my name stripped off this reply. It this censorship or some secret society at work. Hmm! TOM COLLIGAN On 3/12/02 9:43 AM, "Hale Landis" <[EMAIL PROTECTED]> wrote: > This message is from the T13 list server. > > > On Tue, 12 Mar 2002 09:29:49 -0800, Thomas Colligan wrote: >> This message is from the T13 list server. >> It is a good way to force the Short and Long tests to fail and report back a >> error. > > WHY? What are you testing? The ERR and UNC bits in the interface > registers? Please explain what it is you think you are testing. What > if you must corrupt all 512 bytes of a sector (using these commands) > in order to get the drive to set ERR=1 and UNC=1? What does that > test? > > How can you use this command to produce all the types (or even a > small number of the types) of inputs to the drive's ECC hardware? Do > you think that reading "good data" from the media that happens to > have a few bits/bytes flipped is testing anything? Today's drives are > doing ECC correction of some type on each and every sector they read > (that is what PRML is all about!). Do you really think flipping bits > using R/W Long is really testing anything? > > Come on... It is time to "get over" this idea from *50* years ago! > Hard disk drives don't work that way anymore! > > > > *** Hale Landis *** www.ata-atapi.com *** > > >
