Chapter 13 Fan Unit Replacement 13-3
13.1 Accessing a Fan Unit
■ Because the fan unit (FAN) does not belong to any domain, active replacement
and hot replacement use the same procedure. See Section 4.4.1, “FRU Removal
and Replacement (Power supply unit/Fan unit)” on page 4-8.
■ For cold replacement, stop the domain and then power off the server. See
Section 4.5.1, “Powering off the Server” on page 4-12.
Caution – To ensure that you and bystanders are not exposed to harm and to
prevent damage to the system, observe the ESD safety precautions. See Section 1.1,
“ESD Precautions” on page 1-1.
1. From the XSCF Shell prompt, use the replacefru command to disable the fan
unit to be removed.
The replacefru command is a menu-driven interactive command. The
replacefru continues operating while the fan unit is removed. Then later, it
performs the fan unit test. For details, see Section 4.4.1, “FRU Removal and
Replacement (Power supply unit/Fan unit)” on page 4-8.
Caution – To prevent the equipment rack from tipping over, you must deploy the
antitilt feature, if applicable, before you slide the server out of the equipment rack.
Note – When the cable management arm is not mounted, remove the cable ties that
fix the PCI cable to the rear of the server, and slide the server out.
2. Slide the server out from the equipment rack.
For details, see Section 5.1.1, “Sliding the Server Out from the Equipment Rack”
on page 5-1.
3. Remove the fan cover.
For details, see Section 5.4.1, “Removing the Fan Cover” on page 5-7.
XSCF> replacefru
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