Welcome to the blog of Jim Elliott, z Systems Consultant.

Welcome to the blog of Jim Elliott, z Systems Consultant at GlassHouse Systems

I am z Systems consultant retired from the IBM Systems unit at IBM Canada. The postings on this site are my own and don't necessarily represent the positions, strategies or opinions of IBM or GlassHouse Systems.

If you are looking for the material that was on my IBM hosted web site, it is on the right here under "Pages".

CMOS Processor Table

Service discontinued 2003-12-31
G29672-Rn2, 9672-Rn3
Service discontinued 2004-12-31
G39672-Rn4, 2003-nnn (Multiprise 2000)
9672-Rn4 Service discontinued 2006-12-31,
2003 Service discontinued 2007-12-31
9672-Rn5 Service discontinued 2007-12-31,
G59672-Rn6, 9672-Yn6, 9672-Tn6,7060-nnn (Multiprise 3000)
9672-nn6 Service discontinued 2010-12-31
7060 Service discontinued 2012-12-31
G69672-Xn7, 9672-Zn7
9672-nn7 Service discontinued 2010-12-31
G7IBM eServer zSeries 900/800
z900 (2064),z800 (2066)
z/Architecture Principles of Operation, SA22-7832-01
G8IBM eServer zSeries 990/890
z990 (2084), z890 (2086)
z/Architecture Principles of Operation, SA22-7832-04
z/Architecture Reference Summary, SA22-7871-01
HLASM opcodes, APAR PQ85963
G9IBM System z9
z9 EC (2094), z9 BC (2096)
z/Architecture Principles of Operation, SA22-7832-05
z/Architecture Reference Summary, SA22-7871-02
HLASM opcodes, APAR PK18170
G10IBM System z10
z10 EC (2097), z10 BC (2098)
z/Architecture Principles of Operation, SA22-7832-06 (z10 EC)
z/Architecture Principles of Operation, SA22-7832-07 (z10 BC, z10 EC)
z/Architecture Reference Summary, SA22-7871-05
HLASM opcodes, APAR PK58463
G11IBM zEnterprise 196/114
z196 (2817), z114 (2818)
z/Architecture Principles of Operation, SA22-7832-08
z/Architecture Reference Summary, SA22-7871-06
HLASM opcodes, APAR PK97799
G12IBM zEnterprise EC12/BC12
zEC12 (2827), zBC12 (2828)
z/Architecture Principles of Operation, SA22-7832-09
z/Architecture Reference Summary, SA22-7871-07
HLASM opcodes, APAR PM49761
G13IBM z13, IBM z13s
z13 (2964), z13s (2965)
z/Architecture Principles of Operation, SA22-7832-10
z/Architecture Reference Summary, SA22-7871-08
HLASM opcodes, APAR PM79901
  • The first generation to formally have a "G" designation was the G3 and the last was the G6.
  • P/390, R/390 and 3006 (Integrated Server) are also considered "G2" at a current licensed internal code level
  • Linux for S/390 requires a "G5" or later processor or equivalent in 31-bit mode. Linux for System z requires a z/Architecture processor or equivalent in 64-bit mode.
  • The current levels of Linux for z Systems require a z196/z114 processor (or later).
  • z/VM Level Sets
  • z/OS Level Sets
    • z/OS V1 requires a z/Architecture processor.
    • z/OS V2 requires a System z9 (or later) processor.
    • z/OS V2R2 requires a z196/z114 (or later) processor.
  • Information on Processor Version Codes and SRM Constants (including information returned by STIDP and STSI).


  1. z13 last processor to run in 31 bit mode.

    1. More accurately, z13 is the last processor to have ESA/390 mode.