IBM 4500R Hardware Maintenance Manual - Page 54

System reliability considerations, Working inside a server with power

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• 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. 46 Hardware Maintenance Manual: Netfinity 4500R Type 8656

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46
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.