IBM TotalStorage FAStT EXP700, Installation, User'S, And Maintenance Manual

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v Drive CRU: You can install up to 14 hot-swap drive CRUs in the storage
expansion enclosure.
v Drive Fault LED: Each drive CRU has a DriveFault LED. When lit, this amber
LED indicates a drive failure. When flashing, this amber LED indicates that a
drive identify or rebuild process is in progress.
v General system error LED: When lit, this amber LED indicates that the unit has
a power supply, fan unit, ESM, or hard disk drive error.
v
Power-on LED: When lit, this green LED indicates that the storage expansion
enclosure has dc power.
v Enclosure identity LED: When lit, this blue LED indicates that the unit is being
identified by the controller. This LED is also lit when the devices that are part of a
fibre channel loop are identified.
Table 8 shows the Storage Manager and firmware versions required to support
enclosure identity LED activity for the different storage servers that support the
DS4000 EXP700 and DS4000 EXP710.
Table 8. Enclosure identity LED activity support requirements
Connected storage server Storage Manager version Firmware version
FAStT200, FAStT500, or DS4400 8.21 or later 5.21 or later
DS4300 8.33 or later 5.33 or later
DS4500 8.30 or later 5.30 or later
v
Tray handle: Use this multipurpose handle to insert and remove a drive CRU in
the bay.
v Latch: This multipurpose blue latch releases or locks the drive CRU in place.
Rear controls, indicators, and connectors
Two hot-swap power-supply CRUs, two hot-swap fan CRUs, and two ESMs are
accessible from the back of the storage expansion enclosure. These components
contain several controls, indicators, and connectors.
Power-supply controls, indicators, and connectors
The storage expansion enclosure comes with two 400-Watt hot-pluggable,
redundant power supplies. Each power supply has a power and a fault LED located
on the back of the storage expansion enclosure. The green LED indicates that the
power supply is detecting ac power. The amber fault LED is lit if the power supply is
unable to deliver dc power. The storage expansion enclosure requires that both
power supplies be installed to meet Electromagnetic Compatibility (EMC) and
cooling requirements. Figure 5 on page 9 shows their locations.
8
IBM TotalStorage DS4000 EXP700 and EXP710 Storage Expansion Enclosures: Installation, User’s, and Maintenance Guide