In the "more than you wanted to know" department, I have sitting on my semi-junk pile an old Sony Optical disk drive that came off a Sun Sparcstation clone. It uses 600 mb. optical cartridges that only support a 1024 byte sector. It was originally supported by SunOS (the precursor to Solaris), but the drivers are long lost. Only one OS has been able to properly support it: SCO OpenServer.
Needless to say, I don't use it anymore. > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of > Fargusson.Alan > Sent: Monday, August 15, 2005 12:25 PM > To: [email protected] > Subject: Re: [LINUX-390] Dasdfmt and other potential block sizes > > > Technically there are Inter-Record-Gaps. As far as I know > all SCSI and IDE disk are physically formatted in 512 byte > sectors (oddly enough so they will work with Windows, which > seems to have problems with anything other than 512 bytes). > In reality there is a header followed by a gap followed by > 512 bytes of data followed by another gap then next header. > In gory detail: each header and data block actually starts > with a sync mark to get the timing started, then the data or > header, then a block of ECC. All of this is hidden by the > SCSI or IDE controller (the one on the disk, not the one on the bus). > > I know this is probably more then you wanted to know, but I > use to work for a company that made disk controllers. > > -------------------------------------------------------- If you are not an intended recipient of this e-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, retain or redistribute it. Click here for important additional terms relating to this e-mail. http://www.ml.com/email_terms/ -------------------------------------------------------- ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
