Advanced firmware verification using a code simulator for the IBM System z9

Theurich, K.; Albus, A.; Eickhoff, Felix; Immel, David S.; Kohler, Adan; Lange, E.; Buttlar, J. von

doi:10.1147/rd.511.0207

Cited by 1 publication

(1 citation statement)

References 10 publications

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“…Several enhancements to the z/CECSIM (Central Electronic Complex Simulator) [6] verification tool were introduced to support the CBR development. This simulator was used to verify the processor firmware that implemented the different CBR steps inside the server.…”

Section: Figure 12mentioning

confidence: 99%

Reducing planned outages for book hardware maintenance with concurrent book replacement

Conklin¹,

Hollenback²,

Mayer³

et al. 2007

IBM J. Res. & Dev.

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The IBM System z9e introduces the enhanced book availability (EBA) feature to reduce the number of planned system outages. Included as part of the EBA feature is the concurrent book replacement (CBR) function, which allows a single book in a multibook server to be concurrently removed from the system in order for service personnel to perform a repair or to physically upgrade the hardware on the book. This repaired or upgraded book is then concurrently replaced and reintegrated into the server configuration. In this paper, we describe the benefits that the concurrent book replacement function offers a customer during a planned repair or upgrade of the System z9. We also describe a tool, developed to analyze the server in order to determine whether the server is ''prepared'' for the concurrent book replacement operation, and we provide an overview of the actions performed by this tool. The paper also contains a description of the concurrent book replacement operation, with an emphasis on the unique functions developed as part of this design.

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Section: Figure 12mentioning

confidence: 99%