Switch Card Bay - IBM TotalStorage 200 Installation And User Manual

Hot-swap power supply/fan bays

Switch card bay

Your storage unit comes with a switch card that contains five external option
switches and four internal option switches. The switch card is located on the back
of the storage unit between the two power supplies. The switch card contains
switches that control how power is supplied to the storage unit and what storage
unit services are enabled. The internal option switches are preset to the default
position (Off). To access the four internal option switches, you must turn off the
storage unit; then remove the switch card. See "Replacing the switch card" on
page 24 for step-by-step instructions.
Attention:
while the storage unit and host server is turned on. Refer to "Turning the storage
unit on and off" on page 17.
In addition to the internal and external option switches, the switch card also has a
10-position unit ID switch for setting the storage unit ID using values 0 through 9.
System-management software, such as IBM Netfinity Manager
it provides data and alerts for the storage unit.
For more information on option switch settings, see "Setting the interface options
and ID settings" on page 11.
The following illustration shows the location of the switch card on the storage unit.
Your storage unit comes with two 500 Watt hot-swap and redundant power
supplies with built-in fans. The power supplies are redundant in that a single
power supply can provide adequate power and cooling for the entire
storage unit. A single power supply supports 14 hard disk drives; however,
both power supplies must be installed, even if one power supply is not
operational. See "Working with hot-swap power supply/fan units" on
page 26 for step-by-step instructions.
Never remove the switch card or change the switch card settings
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, uses the ID when
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Chapter 1. Introduction