Re: Re: standalone code for bootstrapping
| Newsgroups | gmane.comp.emulators.hercules390.general |
|---|---|
| Message-ID | <CAPcd4G9Q-d_c3GP2KM3gKFG0OOybUSpa-LnmZMYQaqmQpjKezA@mail.gmail.com> |
"Even if that is true, which is expected for a different head, why should I care?" Typical.... A string of 3390 DASD had a price tag of $1 million. Very expensive storage in its day. Joe On Sat, Mar 16, 2019 at 9:09 AM kerravon86-/[email protected] [hercules-390] < [email protected]> wrote: > > > ---In [email protected], <joemonk64@...> wrote : > > > Attached is a cutaway of a 3390-1. As you can see, It has 9 disk platters > > for 18 surfaces. > > I think that is changed programattically, as > it has 15 tracks per cylinder listed here: > > http://ibmmainframes.com/references/disk.html > > > Thus, head 0 and head 1 are on separate disks. So, seeking on head 1 is > > seeking on a different disk platter. > > Even if that is true, which is expected for > a different head, why should I care? > > BFN. Paul. > >