
xiv 007-4834-001
About This Guide
Important Information
Danger: Never look into the end of a fiber-optic cable to confirm that light is being
emitted (or for any other reason). Most fiber-optic laser wavelengths (1300 nmand
1550nm) are invisible to the eye and cause permanent eye damage. Shorter wavelength
lasers (for example, 780 nm) are visible and can cause significant eye damage. Use only
an optical power meter to verify light output.
Danger: Never look into the end of a fiber-optic cable on a powered device with any
type of magnifying device, such as a microscope, eye loupe, or magnifying glass. Such
activity causes a permanent burn on the retina of the eye. Optical signals cannot be
verified by looking into the fiber end.
Chapter Descriptions
This guide contains the following chapters:
• Chapter 1, “Introduction to the SGI InfiniteStorage 4000,” describes the features and
components of the system.
• Chapter 2, “Storage Enclosures,” gives a detailed overview of the system enclosure
and its components.
• Chapter 3, “Operating Storage Enclosures,” describes the functions and basic
operation of the system enclosures, including power on and troubleshooting with
the indicator lights.
• Chapter 4, “Replacing Enclosure Components,” gives detailed procedures for
replacing failed components.
• Chapter 5, “Cabling,” describes cabling between controller and expansion
enclosures and between controllers and hosts.
• Appendix A, “Specifications and Requirements,” describes component
specifications and requirements for purposes of installation and maintenance.
• Appendix B, “SGI Field Engineering Compliance Statements,” describes the
regulatory and compliance information for the system.
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