Product manual

CDA 7 5630 Product Manual
iv 77 A1 69UP Rev00
For GCOS 7 systems, the CDA 7 subsystem is available with two disk technologies
giving two different disk capacities: 18 GB and 36 GB.
18 GB refers to the formatted disk capacity. This is equivalent to an unformatted
disk capacity of 23 GB.
36 GB refers to the formatted disk capacity. This is equivalent to an unformatted
disk capacity of 47 GB.
This manual is structured as follows:
Chapter 1 Introducing CDA 7 provides an overview of the
CDA 7 5630, highlighting its performance and
reliability features, and describes hardware and
software options for the unit.
Chapter 2 CDA 7 Hardware introduces the hardware
components of the CDA 7 5630. It describes its main
components, the function of the operator panel, and the
types of host channels and devices to which CDA 7
can attach.
Chapter 3 CDA 7 Input/Output Operations discusses
integrated cached disk arrays, I/O operation, and cache
management.
Chapter 4 Performance Features describes the CDA 7
performance features, how they will affect overall
performance, and how to use these features to get the
best performance from CDA 7.
Chapter 5 Managing Critical Data discusses the CDA 7 features
that affect data availability and reliability.
Appendix A Power Sequences provides step-by-step instructions
for powering the CDA 7 5630 on and off.
Appendix B EPS Installation Requirements covers the tasks you
need to perform when planning or verifying the
physical configuration of CDA 7 in your system or
creating I/O addressing schemes.
Glossary defines terms used in this manual.
Index contains an index to help you access the information of
interest directly.
Prerequisites
Structure