IBM TotalStorage DS4300 Turbo, Инструкция по установке, использованию и обслуживанию

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storage subsystem and all its attached storage expansion enclosures will have
power if only one power circuit is available. In addition, having all the right or all
the left power supplies plugged into the same power circuit will enable the
components in the storage subsystem to power on simultaneously during an
unattended restoration of power. See Figure 72 on page 86 for an example of
redundant power connections.
Storage subsystem components
The following sections show the components of the DS4300 storage subsystem.
Note: The graphics used in this document are for illustrative purposes only. The
appearance of the actual device may differ from the graphic.
All DS4300 storage subsystem models support hot-swap fibre channel hard drive
CRUs and cooling fan CRUs, so you can remove and replace these components
without turning off the storage subsystem. In addition, the DS4300 storage
subsystem models 60X and 60U support hot-swap power supplies and RAID
controller CRUs.
Attention: The DS4300 single-controller storage subsystem (model 6LU and 6LX)
has one power supply and one controller; therefore, you cannot hot swap these
components.
Front view
Figure 1 shows the components and controls on the front of the DS4300 storage
subsystem.
Note: The graphics used in this document are for illustrative purposes only. The
appearance of the actual device may differ from the graphic.
Power-on LED
When on, this green light indicates that the unit has good dc power.
The DS4300 single-controller storage subsystem (model 6LU and 6LX) has
a single power supply therefore; when the power supply fails, the
General-system-error LED and the Power-on LED are not lit.
Hot-swap
drive CRU
Tray handle
Latch
Drive activity LED
Drive fault LED
Power-on LED
General-system-
error LED
Locator LED
Figure 1. DS4300 storage subsystem front controls and components
Chapter 1. Introduction
11