Silicon Graphics IS2224, Setup Manual

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System Overview
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Figure 1-5 IS2224 JBOD Enclosure Front Status Panel Example
Retention of critical data is enabled by optional, fully redundant and hot-swappable
Environmental Services Modules (ESMs). Each ESM features three 6Gb/s SAS ports, providing
connectivity for two host devices and an expansion port to connect additional JBOD enclosures
via SFF-8088 connections. LEDs on the power supplies, ESMs and each individual drive carrier
allow all system components to be closely monitored to help system administrators ensure storage
integrity.
Figure 1-4 on page 4 shows an example rear view of the IS2224 JBOD enclosure.
All system power, data interconnect and some status LEDs are located on the back of the system.
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