VOS was the operating system developed by Hitachi for their domestic market. Back in the early 80's we (NAS, now HDS) had some customers who would entertain the idea of running non-IBM operating systems. This approach never really took off and VOS remained in Japan.
HITACHI DATA SYSTEMS Raymond E. Noal Senior Technical Engineer Office: (408) 970 - 7978 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Itschak Mugzach Sent: Wednesday, November 28, 2007 12:12 PM To: [email protected] Subject: Re: How Compatible is BS/2000 with IBM zSeries? Frank, Speaking about Japan, do you mean running VOS? I think it is/was HDS hardware. Itschak Mugzach, Director SecuriTeam Software ltd. Tel: +972 (522) 986404 Skype: Securiteam-Software Email: [EMAIL PROTECTED] Gmail: [EMAIL PROTECTED] for large mails -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Frank Krueger Sent: Wednesday, November 28, 2007 9:30 PM To: [email protected] Subject: Re: How Compatible is BS/2000 with IBM zSeries? Roland BS3000 was the original FACOM/OSIV operating system from Fujitsu - actually a copy of MVS Sp 1.3 - mostly the comments in the source has been changed . I was working in support for this in 1983 - heavy looking in microfiche. BS3000 also run on FUJITSU HW - as MVS also at this time - but most customer preferred MVS. Machine Types was 7890 , 7860 - in the 3083,3081 and 3084 times . BS2000 was originally developed by RCA iirc - in the times of 360 . BS2000 was running on SIEMENS HW and later on compatible HW from FUJITSU - but there is no TSO . BS2000 has the same command language for Batch and ONLINE - no difference between TSO and JCL . And IIRC the data is organized in PAM-Pages - each 4K . No DSORG,BLKSIZE etc. So it is mostly different - only low level it is MVS-like . And i think today the same machines still run BS2000 for Siemens as FACOM in Japan . Frank It's close. The Assembler instructions are the same based on the 370 architecture. The macros differ. Cobol is also very close but without IBM extensions. The EBCDIC codepage differ for german umlaut. About 15 years ago you can IPL MVS on a siemens hardware but require intervention from Siemens. I never worked on BS2000 just on a CICS-UTM connection. BS2000/OSD the OS is complete different. BS3000 was close to MVS but IBM persue Siemens and BS3000 was dead. Roland ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
