IBM Netfinity 4500R, Hardware Maintenance Manual

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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.
System reliability considerations
To help ensure proper cooling and system reliability, make sure:
• 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.
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:
• 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.
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
package containing the option until you are instructed to do so.
When you handle options and other server components, take these precautions to
avoid damage from static electricity:
• Limit your movement. Movement can cause static electricity to build up around
you.