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2: Storage Enclosures
A Quick Glance at the Storage Enclosure Hardware
• The top-left ESM is inverted from the bottom-right ESM.
• The top-right power-fan unit is inverted from the bottom-left power-fan unit.
• The drive tray is in the correct (top) orientation when the lights of the drives are at
the bottom.
• Four fans pull air through the enclosure from front to back across the drives.
Figure 2-1 Front and Back View of the Storage Enclosure
1. Drive Unit
2. Alarm Mute Button
3. Link (Data) Rate Switch
(4/2 Gb/s)
4. ESM CRU
5. Power-Fan CRU
6. Power Connector
7. Power Switch
8. In/Out Ports
9. Serial Port
10. In/Out Ports
(Reserved for future use)
11. Tray ID/Diagnostic Display
(Set automatically)
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