RE: Tektronix 8560 external hard disk connector [WAS: Re: The origin of SCSI]

2017-10-09 Thread Rick Bensene via cctalk
Al K. wrote: >there are two versions. the 1981 8560 uses microp 1200, later ones have xebec >1410 and are sasi >070-3899-00_8560_MSDU_Installation_Guide_Nov81.pdf >070-4759-00_8560_8561_8562_Service_Mar84.pdf If the 8560 in question uses the 8" hard disk drive from Micropolis, then Bitsavers a

Re: Tektronix 8560 external hard disk connector [WAS: Re: The origin of SCSI]

2017-10-08 Thread Al Kossow via cctalk
On 10/8/17 3:14 PM, Christian Groessler via cctalk wrote: > On 10/07/17 03:06, Rick Bensene via cctalk wrote: > >> If I recall correctly, these machines used an 8" Micropolis hard disk drive. there are two versions. the 1981 8560 uses microp 1200, later ones have xebec 1410 and are sasi 070-3

Re: Tektronix 8560 external hard disk connector [WAS: Re: The origin of SCSI]

2017-10-08 Thread Christian Groessler via cctalk
On 10/07/17 03:06, Rick Bensene via cctalk wrote: If I recall correctly, these machines used an 8" Micropolis hard disk drive. These were most definitely not SCSI, or even SASI. They used a proprietary Micropolis parallel interface. The disk expansion connector, while looking like it might be

RE: Tektronix 8560 external hard disk connector [WAS: Re: The origin of SCSI]

2017-10-06 Thread Rick Bensene via cctalk
Chris G. wrote: >This reminds me of something I wanted to ask for some time: >I've got a Tektronix 8560 where the internal hard disk is not that much >reliable anymore. No read/write errors, but after running for >some time (btw. >24h and 48h) it seems to reset. >Spin-down, spin-up, etc. until