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some restrictions, hot-swap blade servers while the BladeCenter unit is running.
For complete details about installing or removing a hot-swap component, see the
detailed information in this chapter.
v The blue color on components and labels identifies touch points where you can
grip a component, move a latch, and so on.
v You do not need to disconnect the BladeCenter unit from power to install or
replace any of the hot-swap modules on the rear of the BladeCenter unit. You
need to shut down the operating system and turn off a hot-swap blade server on
the front of the BladeCenter unit before removing the blade server, but you do
not need to shut down the BladeCenter unit itself.
v For a list of supported options for your BladeCenter unit, go to
http://www.ibm.com/pc/compat/ on the World Wide Web.
System reliability considerations
To help ensure proper cooling and system reliability, make sure that:
v Each of the module bays on the rear of the BladeCenter unit has either a module
or filler module installed.
v Each of the blade bays on the front of the BladeCenter unit has either a blade
server or filler blade installed.
v Each of the drive bays in a blade server storage expansion option has either a
hot-swap drive or a filler panel installed.
v A removed hot-swap module, blade server, or drive is replaced within two
minutes of removal.
v Cables for the option modules are routed according to the illustrations and
instructions in this document.
v A failed blower is replaced as soon as possible, to restore cooling redundancy.
Handling static-sensitive devices
Attention: Static electricity can damage electronic devices and your system. To
avoid damage, keep static-sensitive devices in their static-protective packages until
you are ready to install them.
To reduce the possibility of electrostatic discharge, observe the following
precautions:
v Limit your movement. Movement can cause static electricity to build up around
you.
v Handle the device carefully, holding it by its edges or its frame.
v Do not touch solder joints, pins, or exposed printed circuitry.
v Do not leave the device where others can handle and damage it.
v While the device is still in its static-protective package, touch it to an unpainted
metal part of the BladeCenter unit or rack where the BladeCenter unit is installed
for at least 2 seconds. This drains static electricity from the package and from
your body.
v Remove the device from its package, and install it directly into the system unit
without setting the device down. If it is necessary to set down the device, place it
back into its static-protective package. Do not place the device on your system
unit or on a metal surface.
v Take additional care when handling devices during cold weather. Heating reduces
indoor humidity and increases static electricity.
32 BladeCenter E Type 8677 and 1881: Hardware Maintenance Manual and Troubleshooting Guide