The first versions of the 3090 service processor did use the 3370's for microcode and 4331's in the service processor. The later versions - I think starting with the "J" model had replaced the 4331 with 4361's. Back in about 1987 IBM had big marketing campaign offering large discounts to shops running 4361 processors; they were trying to get "us" to upgrade to 4381's.
Back then a friend of mine in NY told me they needed the 4361 gates for the 3090 production line. Gary Garland Gregory, MS CA Senior Software Engineer Tel: +1-214-473-1863 Fax: +1-214-473-1050 [EMAIL PROTECTED] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Anne & Lynn Wheeler Sent: Saturday, March 03, 2007 10:54 AM To: [email protected] Subject: Re: FBA rant [EMAIL PROTECTED] wrote: > Not enough caffeine...should be VM/XA vm370 (and CMS) shipped with 3310 and 3370 support when the devices first became available in the 70s. 3310/piccolo was used by the 3081 service process (running custom programming on microprocessor) ... including "paging device" for 3081 "paged" microcode ... old post discussing SIE instruction implementation trade-offs between 3081 and 3090 (including 3081 would be "paging" part of the microcode) http://www.garlic.com/~lynn/2006j.html#27 virtual memory I don't remember for sure whether FBA (3370) was used by the 3090 service processor or not. The 3090 service processor started out being a highly customized version of vm370 release 6 running on 4331 processor . Before FCS, 3090 service processor was upgraded to high customized version of vm370 release 6 running on a pair of 4361 processors (with service processor menu screens implemented in CMS's IOS3270). previous posts http://www.garlic.com/~lynn/2007e.html#35 FBA rant http://www.garlic.com/~lynn/2007e.html#38 FBA rant ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
