IBM 7379E2U User Manual - Page 45

System reliability guidelines, Working inside the server with the power on, Attention

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v Orange on a component or an orange label on or near a component indicates that the component can be hot-swapped, which means that if the server and operating system support hot-swap capability, you can remove or install the component while the server is running. (Orange can also indicate touch points on hot-swap components.) See the instructions for removing or installing a specific hot-swap component for any additional procedures that you might have to perform before you remove or install the component. v When you work inside the server, you might find it easier to lay the server on its side. v For a list of supported optional devices for the server, see http://www.ibm.com/ servers/eserver/serverproven/compat/us/. System reliability guidelines To help ensure proper cooling and system reliability, make sure that the following requirements are met: v Each of the drive bays has a drive or an electromagnetic compatibility (EMC) shield installed in it. v If the server has redundant power, each of the power-supply bays has a power supply installed in it. v There is adequate space around the server to allow the server cooling system to work properly. Leave approximately 50 mm (2.0 in.) of open space around the front and rear of the server. Do not place objects in front of the fans. For proper cooling and airflow, replace the left-side cover before you turn on the server. Operating the server for extended periods of time (more than 30 minutes) with the left-side cover removed might damage server components. v You have followed the cabling instructions that come with optional adapters. v You have replaced a failed fan within 48 hours. v You have replaced a hot-swap drive within 2 minutes of removal. v You have replaced a hot-swap fan within 30 seconds of removal. v You do not remove the air duct or air baffles while the server is running. Operating the server without the air duct or air baffles might cause the microprocessor to overheat. v Microprocessor socket 2 always contains either a microprocessor baffle or a microprocessor and heat sink. Working inside the server with the power on Attention: Static electricity that is released to internal server components when the server is powered-on might cause the server to halt, which might result in the loss of data. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other grounding system when you work inside the server with the power on. The server supports hot-swap devices and is designed to operate safely while it is turned on and the cover is removed. Follow these guidelines when you work inside a server that is turned on: v Avoid wearing loose-fitting clothing on your forearms. Button long-sleeved shirts before you work inside the server; do not wear cuff links while you are working inside the server. v Do not allow your necktie or scarf to hang inside the server. v Remove jewelry, such as bracelets, necklaces, rings, and loose-fitting wrist watches. Chapter 2. Installing optional devices 29

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v
Orange on a component or an orange label on or near a component indicates
that the component can be hot-swapped, which means that if the server and
operating system support hot-swap capability, you can remove or install the
component while the server is running. (Orange can also indicate touch points on
hot-swap components.) See the instructions for removing or installing a specific
hot-swap component for any additional procedures that you might have to
perform before you remove or install the component.
v
When you work inside the server, you might find it easier to lay the server on its
side.
v
For a list of supported optional devices for the server, see http://www.ibm.com/
servers/eserver/serverproven/compat/us/.
System reliability guidelines
To help ensure proper cooling and system reliability, make sure that the following
requirements are met:
v
Each of the drive bays has a drive or an electromagnetic compatibility (EMC)
shield installed in it.
v
If the server has redundant power, each of the power-supply bays has a power
supply installed in it.
v
There is adequate space around the server to allow the server cooling system to
work properly. Leave approximately 50 mm (2.0 in.) of open space around the
front and rear of the server. Do not place objects in front of the fans. For proper
cooling and airflow, replace the left-side cover before you turn on the server.
Operating the server for extended periods of time (more than 30 minutes) with
the left-side cover removed might damage server components.
v
You have followed the cabling instructions that come with optional adapters.
v
You have replaced a failed fan within 48 hours.
v
You have replaced a hot-swap drive within 2 minutes of removal.
v
You have replaced a hot-swap fan within 30 seconds of removal.
v
You do not remove the air duct or air baffles while the server is running.
Operating the server without the air duct or air baffles might cause the
microprocessor to overheat.
v
Microprocessor socket 2 always contains either a microprocessor baffle or a
microprocessor and heat sink.
Working inside the server with the power on
Attention:
Static electricity that is released to internal server components when
the server is powered-on might cause the server to halt, which might result in the
loss of data. To avoid this potential problem, always use an electrostatic-discharge
wrist strap or other grounding system when you work inside the server with the
power on.
The server supports hot-swap devices and is designed to operate safely while it is
turned on and the cover is removed. Follow these guidelines when you work inside
a server that is turned on:
v
Avoid wearing loose-fitting clothing on your forearms. Button long-sleeved shirts
before you work inside the server; do not wear cuff links while you are working
inside the server.
v
Do not allow your necktie or scarf to hang inside the server.
v
Remove jewelry, such as bracelets, necklaces, rings, and loose-fitting wrist
watches.
Chapter 2. Installing optional devices
29