IBM totalstorage 200, Руководство по обслуживанию

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Chapter 4. Adding and replacing components
This chapter instructs you on how to add and replace components, informs you
about safety and system reliability, and shows you the location of the major
components.
Before you begin
Before you begin to install options in your Models 200 and 225, read the following
information:
v
Become familiar with the safety and handling guidelines specified under
“Handling electrostatic discharge-sensitive devices” on page 124.
v
You do not need to switch off the Models 200 and 225 or remove covers to install
or replace hot-swap power supplies or hot-swap hard drives.
v
The blue color on components and labels inside your Models 200 and 225
identifies touch points where a component can be gripped, a latch moved, and so
on.
v
Make sure that you have an adequate number of properly grounded electrical
outlets for Models 200 and 225 and any other options that you intend to install.
v
Back up all important data before you make changes to hard drives.
v
Have a small, flat-blade screwdriver available.
Safety information
Before you begin installing components, read the safety information found in
“Translated safety notices” on page 124. For translations of the safety notices that
are included in this guide, refer to
Safety Information .
System reliability considerations
Adding options to the base configurations could increase power requirements
beyond the limit for redundancy. To ensure that redundancy is maintained, check
the status of the NON LED on the system board after you install any option.
To help ensure proper cooling and system reliability, make sure that:
v
Each of the drive bays has either a drive or a filler panel installed.
v
The cover is in place during normal operations, or is removed for no longer than
30 minutes while the appliance is operating.
Note: The front door (Model 200) can be removed permanently without affecting
system reliability.
v
There is space around the appliance to allow the appliance cooling system to
work properly.
– For Model 200, leave about 127 mm (5 in.) of space around the front and rear
of the appliance.
– For Model 225, refer to the documentation that comes with the rack.
v
A removed hot-swap drive is replaced within 2 minutes of removal.
v
Cables for optional adapters are routed according to the instructions provided
with the adapters.
v
A failed fan is replaced within 48 hours.
© Copyright IBM Corp. 2001
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