IBM Journal of Research and Development
IBM Skip to main content
  Home     Products & services     Support & downloads     My account  

  Select a country  
Journals Home  
  Systems Journal  
Journal of Research
and Development
    Current Issue  
    Recent Issues  
    Papers in Progress  
    Recent publications  
    Author's Guide  
  Contact Us  
  Related links:  
     IBM Research  

IBM Journal of Research and Development  
Volume 48, Number 3/4, Page 519 (2004)
IBM eServer z990
  Full article: arrowHTML arrowPDF   arrowCopyright info


Reliability, availability, and serviceability (RAS) of the IBM eServer z990

by M. L. Fair, C. R. Conklin, S. B. Swaney, P. J. Meaney, W. J. Clarke, L. C. Alves, I. N. Modi, F. Freier, W. Fischer, N. E. Weber
The IBM eServer™ zSeries® Model z990 offers customers significant new opportunity for server growth while preserving and enhancing server availability. The z990 provides vertical growth capability by introducing the concurrent addition of processor/memory books and horizontal growth in channels by the use of extended virtualization technology. In order to continue to support the zSeries legacy for high availability and continuous reliable operation, the z990 delivers significant new features for reliability, availability, and serviceability (RAS). This paper describes these new capabilities, in each case presenting the value of the feature, both in terms of enhancing the self-management capability of the server and its availability.
Related Subjects: Computer architecture; Computer organization and design; Computer system availability; IBM eServer z990