System Reliability Considerations; Working Inside The Server With The Power On; Handling Static Sensitive Devices - IBM eserver xSeries 350 User Reference Manual

System reliability considerations

To help ensure proper cooling and system reliability, make sure that:
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Working inside the server with the power on

Your server supports hot-plug, hot-add, and hot-swap devices and is designed to
operate safely while turned on with the cover removed. Follow these guidelines when
you work inside a server that is turned on:
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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 bags until you
are ready to install them.
To reduce the possibility of electrostatic discharge, observe the following precautions:
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IBM® xSeries 350: User's Reference
Each of the drive bays has either a drive or a filler panel installed.
Each of the power-supply bays has either a power supply or a filler panel
installed.
There is at least 50 mm (2 inches) of ventilated space at the sides of the server and
100 mm (4 inches) at the rear of the server.
The top cover is in place during normal operation.
The top cover is removed for no longer than 30 minutes while the server is
operating.
A removed hot-swap drive is replaced within two minutes of removal.
Cables for optional adapters are routed according to the instructions that are
provided with the adapters.
A failed fan is replaced within 48 hours.
Avoid loose-fitting clothing on your forearms. Button long-sleeved shirts before
working inside the server; do not wear cuff links while you are working inside the
server.
Do not allow your necktie or scarf to hang inside the server.
Remove jewelry, such as bracelets, necklaces, rings, and loose-fitting wrist
watches.
Remove items from your shirt pocket (such as pens or pencils) that could fall into
the server as you lean over it.
Take care to avoid dropping any metallic objects, such as paper clips, hair pins, or
screws, into the server.
Limit your movement. Movement can cause static electricity to build up around
you.
Handle the device carefully, holding it by its edges or its frame.
Do not touch solder joints, pins, or exposed printed circuitry.
Do not leave the device where others can handle and possibly damage the device.
While the device is still in its anti-static bag, touch it to an unpainted metal part of
the system unit for at least two seconds. (This drains static electricity from the
package and from your body.)
Remove the device from its package and install it directly into your system unit
without setting it down. If it is necessary to set the device down, place it on its