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Chapter 1 Tray Overviews 9
FIGURE 1-8 Sun StorageTek 2530 Array Controller Connectors
Controller Tray and Drive Expansion Tray Power-
Fan Assembly
The power-fan assembly for the Sun StorageTek 2540 Array, the Sun StorageTek 2530
Array, and the Sun StorageTek 2501 Array is identical and interchangeable.
Note – A minimum of two disk drives must be operating in a controller tray or a
drive expansion tray to avoid generating a power-fan assembly error.
The power-fan assembly contains an integrated cooling fan. The power supply
provides power to the internal components by converting incoming AC voltage to
DC voltage. The fan circulates air inside of the tray by pulling air in through the
vents on the front of the assembly and pushing the air out of the vents on the back
of each fan.
Each tray contains two power-fan assemblies. If one power supply is turned off or
malfunctions, the other power supply maintains electrical power to the tray.
Likewise, the fans provide redundant cooling. If one of the fans in either fan housing
fails, the remaining fan continues to provide sufficient cooling to operate the tray.
The remaining fan runs at a higher speed until the failed fan is replaced. Replace the
failed fan as soon as possible.
1. Drive Expansion Tray
Connector (SAS Out)
2. Ethernet Management Host
Connector
3. SAS Data Host Connectors
4. RS-232 Connector
(Diagnostics Port)