IBM 990 - Manual (Page 85)

© Copyright IBM Corp. 2003, 2004. All rights reserved. 73
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:
3.1, “Overview” on page 74
3.2, “I/O cages” on page 75
3.3, “I/O and cryptographic feature cards” on page 84
3.4, “Connectivity” on page 89
3