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© Copyright IBM Corp. 2004. All rights reserved. 73
Draft Document for Review April 7, 2004 6:15 pm 6947ch03.fm
Chapter 3. I/O system structure
This chapter describes the I/O system structure, the connectivity and the cryptographic
options available on the zSeries 990 server.
The z990 server I/O and cryptographic features are also discussed, including configuration
options for each feature.
The following topics are included:
“Overview” on page 74
“I/O cages” on page 75
“I/O and cryptographic feature cards” on page 84
“Connectivity” on page 89
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