The following message is a courtesy copy of an article that has been posted to bit.listserv.ibm-main as well.
[EMAIL PROTECTED] (John McKown) writes: > This is strictly for z/Linux use. I really doubt that you can connect > "mainframe" DASD to your AIX system. The interface is different. The > "mainframe" uses FICON. The AIX likely uses FCP (or maybe some SCSI > variant). To the best of my knowledge, there is no "host adapter" for > a p Series which will connect it to a FICON DASD unit. And even if > there were, you'd need a device driver. recent post that includes some old references ... including old product press release http://www.garlic.com/~lynn/2008p.html#61 Serial vs. Parallel one of the rs/6000 engineers had taken some fiber optic technology that had been kicking around POK (for possibly a decade) and tweaked it so that it was about 10% faster and used significantly cheaper optical driver technology. This was announced as SLA (serial-link-adapter) and was incompatible with what POK announced as ESCON (because of the SLA enhancements). He then wanted to do a 800mbit version of SLA ... but we had been working with various national labs and standards organizations and eventually talked him into joining the FCS standards body where he became secretary and "owned" the standards specification document for some period. There were significant discussions that went on in the FCS standards mailing list, where mainframe channel engineers were insisting on layering all sorts of complexity on top of FCS ... mostly to support various mainframe channel idiosyncrasies (which has been called FICON). Most FCS use has been for both messaging interconnect as well as for things like carrying "packetized" SCSI commands. old post referencing doing some work on HA/CMP scaleup using FCS http://www.garlic.com/~lynn/95.html#13 some old email on the activity http://www.garlic.com/~lynn/lhwemail.html#medusa as mentioned in the above ... we eventually got told that we could no longer work on anything with more than four processors. recent thread of how something similar was done starting with HYPERChannel back in 1980 ... which went thru some evolution with various hardware generations. http://www.garlic.com/~lynn/2008l.html#17 IBM-MAIN longevity http://www.garlic.com/~lynn/2008m.html#20 IBM-MAIN longevity http://www.garlic.com/~lynn/2008q.html#33 Startio Question http://www.garlic.com/~lynn/2008q.html#34 Startio Question http://www.garlic.com/~lynn/2008q.html#36 Startio Question -- 40+yrs virtualization experience (since Jan68), online at home since Mar70 ---------------------------------------------------------------------- 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
