System Reliability Considerations; Working Inside A Server With Power On; Handling Static-Sensitive Devices - IBM Netfinity 4500R Type 8656 Hardware Maintenance Manual

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System reliability considerations

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

Your server supports hot-plug, hot-add, and hot-swap devices and it is designedto
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

Static electricity, though harmless to you, can seriously damage server components or
options.
Note: When you are adding an internal option, do not open the static-protective
When you handle options and other server components, take these precautions to
avoid damage from static electricity:
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Hardware Maintenance Manual: Netfinity 4500R Type 8656
Make sure that you have an adequate number of properly grounded electrical
outlets for your server, monitor, and any other options that you intend to install.
Back up all important data before you make changes to disk drives.
Have a small, flat-blade screwdriver available.
For a list of supported options for your server, refer to
http://www.ibm.com/pc/us/compat on the World Wide Web.
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.
The cover is in place during normal operation.
Space is available around the server to allow the server cooling system to work
properly. Refer to the documentation that comes with the rack.
The 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 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 to hang inside the server.
Remove jewelry, such as bracelets, necklaces, 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.
package containing the option until you are instructed to do so.
Limit your movement. Movement can cause static electricity to build up around
you.