Fan, Esm, And Power-Supply Bays; Front Controls And Indicators - IBM TotalStorage FAStT EXP700 Installation And User Manual
Storage expansion unit
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Also See for TotalStorage FAStT EXP700:
- Hardware maintenance manual (184 pages) ,
- Installation, user's, and maintenance manual (158 pages)
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Attention:
Hot-swap a drive CRU when its amber Fault LED is lit and not flashing or when the
drive is inactive and the green Activity LED is lit and not flashing.
The hot-swap feature of the FAStT EXP700 enables you to remove and replace
hard disk drives, power supplies, ESMs, and fans without turning off the expansion
unit. You can maintain the availability of your system while a hot-swap device is
removed, installed, or replaced.
Fan, ESM, and power-supply bays
The location of the FAStT EXP700 hot-swap fan bays, hot-swap ESM bays, and
hot-swap power supply bays are shown in Figure 2.
Figure 2. Hot-swap fan, ESM, and power supply bays
v Hot-swap fan bays: Your expansion unit comes with two interchangeable
v ESM bays: Your expansion unit comes with two hot-swappable ESMs. The
v ESM latches: Your expansion unit ESMs come with locking latches to secure the
v Hot-swap power-supply bays: Your expansion unit comes with two hot-swap
Front controls and indicators
This section describes the primary controls on the front of the expansion unit. The
location of these primary controls are shown in Figure 3 on page 4.
Never hot-swap a drive CRU when its green Activity LED is flashing.
hot-swap and redundant fan units. These two fan units are located in the
hot-swap fan bays. Each fan unit contains two fans. If one fan unit fails, the
second fan unit continues to operate. Both fan units must be installed to maintain
proper cooling within your expansion unit, even if one fan unit is not operational.
ESMs are located in the ESM bays. The ESMs provide a 1 GB or 2 GB Fibre
Channel interface to the drives and monitor the overall status of the expansion
unit. Each ESM has two SFP module connector ports for connecting your
expansion unit to the controller or connecting two or more FAStT EXP700 units
together. The ESMs provide redundancy when both of them are configured into
redundant Fibre Channel loops. See your Fibre Channel controller documentation
to determine if the controller supports this redundancy function.
ESMs to the expansion unit bays. The latch must be unlocked before the ESM
can be removed from the expansion unit.
and redundant power supplies. The power supplies are located in the hot-swap
power-supply bays. Both power supplies must be installed in your expansion unit,
even if one power supply is not operational.
Hot-swap fan bays
ESM latches
ESM bays
1 Gb/s
2 Gb/s
X10
X1
Conflict
Tray Number
Hot-swap power
supply bays
3
Chapter 1. Introduction
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