IBM eServer 250 xSeries, Руководство пользователя

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IBM® xSeries 250: User’s Reference
Before you begin
Before you begin to install options in your server, read the following information:
• Become familiar with the safety and handling guidelines provided in the Safety
Information book, the requirements specified in “Safety information statements”
on page 38, and the information in“Handling static-sensitive devices” on page 37.
These guidelines will help you work safely while working with your server or
options.
• You do not need to turn off the server to install or replace hot-swap power
supplies, hot-swap drives, hot-swap fans, Active peripheral component
interconnect (PCI) (hot-plug) adapters, or hot-plug USB devices.
• The orange color on components and labels in your server identify hot-swap or
hot-plug components. This means that you can install or remove the component
while the system is running, provided that your system is configured to support
this function.
• The blue color on components and labels identify touch points where you can
grip a component, move a latch, and so on.
• 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 hard disk drives.
• For a list of supported options for the xSeries 250, 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.
• There are 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.
• The processor housing cover over the processor and memory area is removed for
no longer than 10 minutes while the server is operating.
• A removed hot-swap drive is replaced within 10 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.