[email protected] (Scott Rowe) writes: > OK,the 9121 had some CMOS in it, but also still had much Bipolar logic: > http://citeseerx.ist.psu.edu/viewdoc/download;jsessionid=212AEDFD169F4B9A8AB5D641C4560917?doi=10.1.1.86.4485&rep=rep1&type=pdf >
compares footprint of 9121 air-cooled (announced sep91) with footprint of 4381 air-cooled (announced sep83). ... also mentions mainframe finally getting ESCON at 10MB/s (about the time we were doing FCS for 1GB/s dual-simplex, aka concurrent 1GB/s in each direction ... mainframe flavor of FCS with bunch of stuff layered ontop, was eventually announced as FICON). misc. old email from fall of 91 & early 92 related to using FCS for cluster scaleup http://www.garlic.com/~lynn/lhwemail.html#medusa also this old post referencing jan92 cluster scaleup meeting in Ellison's conference room http://www.garlic.com/~lynn/95.html#13 one of the issues in this proposed disk head desgn http://www.garlic.com/~lynn/20006s.html#email871230 reference in recent post http://www.garlic.com/~lynn/2010m.html#44 IBM 3883 Manuals was the 100MB/s or so transfer (16 tracks in parallel) ... 3090 had to do some unnatural acts to connect 100MB/s HiPPI channel interface (lots of problems between MVS unable to support non-CKD ... and mainframe difficulty supporting 100MB/s and higher transfer rates). the article also mentions use of EVE ... either the engineering verification engine or the endicott verification engine ... depending on who you were talking to. EVE packaging violated standard product floor loading and weight guidelines ... for customer products (but they weren't sold to customers). San Jose got an EVE in the period of the earthquake retrofit of disk engineering bldg. 14 ... while engineering was temporarily housed in an offsite bldg. The san jose EVE (in offsite bldg) as well as los gatos LSM was used in RIOS chipset design (part of the credit bringing in RIOS chipset a year early went to use of EVE and LSM). One of my other hobbies was HSDT effort ... with high-speed terrestrial and satellite links http://www.garlic.om/~lynn/subnetwork.html#hsdt There was HSDT 7m satellite dish in austin (where RIOS chip design went on, austin had greater rainfade and angle thru atmosphere to the bird in the sky ... eventually announced as power & rs6000) ... and HSDT 4.5m dish in los gatos lab parking lot. That got chip designs between austin and LSM in the los gatos lab. Los Gatos lab had T3 microwave digital radio to roof of bldg. 12 on main plant site ... and then link from bldg. 12 to temporary offsite engineering lab (got rios chip design from austin to the san jose EVE). -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
