Storage Server Components; Front View - IBM TotalStorage DS4300 Installation And User Manual

v Using the DS4000 Storage Manager client, save the DS4000 subsystem
v DS4300 Model 60U/60X only: To maintain power redundancy, plug the DS4300

Storage server components

The topics in this section show the components of the DS4300 storage server.
All DS4300 storage server 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 server. In addition, the DS4300 storage server
models 60X/60U support hot-swap power supplies and RAID controller CRUs.
Attention: You will lose data if you attempt to hot-swap a power supply or RAID
controller in a DS4300 single-controller (Model 6LU/6LX).

Front view

Figure 2 shows the components and controls on the front of the storage server.
Figure 2. Front controls and components
Power-on LED
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IBM TotalStorage DS4300 Fibre Channel Storage Server: Installation and User's Guide
– The storage subsystem logical drives and arrays seem to be degraded.
configuration profile to a disk that is not affected every time you make changes to
the DS4000 subsystem configuration (such as logical drive creation or
modification, or storage partitioning changes).
dual-controller storage server's right and left power supplies into two independent
external power circuits through ac distribution units inside a rack cabinet or
directly into external receptacles. Similarly, the right and left power supplies of
the DS4000 storage expansion enclosures attached to the DS4300 storage
server should be plugged into the same two independent external power circuits
as the DS4300 storage server. This ensures that the DS4300 storage server 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 40 on page 41 for an example of redundant power
connections.
General-system-
error LED
Power-on LED Locator LED
Tray handle
When on, this green light indicates that the unit has good dc power.
Hot-swap
drive CRU
Drive activity LED
Latch
Drive fault LED