Storage Subsystem Components; Front View; Ds4300 Storage Subsystem Front Controls And Components - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

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
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:
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.
Figure 1. DS4300 storage subsystem front controls and components
Note: The graphics used in this document are for illustrative purposes only. The
Power-on LED
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.
appearance of the actual device may differ from the graphic.
The DS4300 single-controller storage subsystem (model 6LU and 6LX)
General-system-
error LED
Locator LED
Power-on LED
Tray handle
appearance of the actual device may differ from the graphic.
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
Drive activity LED
Latch
Drive fault LED
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Chapter 1. Introduction