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O technology – Promise Technology 66 Pro User Manual

Page 133

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SuperTrak66™ User's Manual

Appendix A

A-9

I

2

O technology

I

2

O, which stands for Intelligent Input/Output, addresses one of the weakest links in

turning today’s PCs into servers: degraded CPU performance due to heavy I/O
processing. By offloading much of the I/O workload to the SuperTrak66 controller
card processor, the I

2

O architecture frees the system CPU from the many low-level

requests involved in RAID operations.

I

2

O is a forward-thinking approach to resolving the long-standing issue of platform

interface independence. Since I

2

O drivers are supplied by the maker of each

operating system, I

2

O product manufacturers can focus on product development

rather than thinking about building specific drivers for each individual operating
system. Theoretically, any product that is I

2

O compatible becomes cross-platform-

compatible with all operating systems that support I

2

O.

At the time of this writing, only Windows NT 4.0 is officially supported by
SuperTrak.