RAS strategy for IBM S/390 G5 and G6
IBM Journal of Research and Development
IBM eServer z900 I/O subsystem
IBM Journal of Research and Development
RAS design for the IBM eServer z900
IBM Journal of Research and Development
System control structure of the IBM eServer z900
IBM Journal of Research and Development
z/CECSIM: an efficient and comprehensive microcode simulator for the IBM eServer z900
IBM Journal of Research and Development
z990 netmessage-protocol-based processor to support element communication interface
IBM Journal of Research and Development
IBM eServer z990 improvements in firmware simulation
IBM Journal of Research and Development
Replay compilation: improving debuggability of a just-in-time compiler
Proceedings of the 21st annual ACM SIGPLAN conference on Object-oriented programming systems, languages, and applications
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Superior availability is one of the outstanding features of modern zSeries® machines, among the most highly rated of any existing computer platforms in this reqard. Many features contribute to this characteristic, some in hardware, some in software. This paper describes the first error data capture (FEDC) concept in the zSeries 990. The concept is used for both zSeries integration efficiency and its ability to gain field data for problem determination in the user environment. FEDC is not a single function, but part of all internal software (firmware) in the z990. This paper explains the overall concept and implementation details of the various internal functional layers (subsystems).