
Chapter 4 FRU Replacement Preparation 4-3
■ Power supply unit/Fan unit: operated with XSCF commands.
■ Hard disk drive: operated directly, not by using XSCF commands.
■ Cold replacement
After all the domains are stopped and then the server is powered off, a FRU is
operated.
Note – Do not operate a target FRU while the OpenBoot PROM is running (the ok
prompt is displayed). After stopping the relevant domain (power-off) or starting the
Oracle Solaris OS, operate the target FRU.
TABLE 4-2 lists the access locations and applicable replacement methods for each
FRU.
TABLE 4-2 FRU Access Locations and Replacement Methods
FRU
Access
location
Cold
replacement
Hot
replacement
Active
replacement
Where to find the
procedure
Motherboard unit
(MBU_A, MBU_A_2, MBU_A_3,
MBU_A_4, MBU_A_5, MBU_A_6)
Top Yes No No Chapter 6
Memory (DIMM) Top Yes No No Chapter 7
PCIe card (PCIe) Top Yes No No Chapter 8
Hard disk drive (HDD) Front Yes Yes
*
* The FRU is operated directly, without using XSCF commands.
Yes
‡
‡ ■ The hard disk drive will have a redundant configuration by setting the mirroring.
■ If a hard disk drive is a nonmirrored boot device, it must be replaced according to the cold replacement procedure.
■ If a hard disk drive is in a mirrored configuration, active replacement can be performed on the failed drive because the mirrored
hard disk drive continues to be online and functioning. The hard disk replacement procedure varies by the mirroring configuration
method. When it is configured with hardware RAID, see the SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Servers Adminis-
tration Guide. When it is configured with software RAID, see the manuals for the software in use.
Chapter 9
Hard disk drive backplane (HDDBP) Top Yes No No Chapter 10
CD-RW/DVD-RW drive unit
(DVDU)
Front/top Yes No No Chapter 11
Power supply unit (PSU) Rear Yes Yes
†
† The FRU is operated with XSCF commands.
Yes
†
Chapter 12
Fan unit (FAN_A) Top Yes Yes
†
Yes
†
Chapter 13
Fan backplane (FANBP_B) Top Yes No No Chapter 14
Operator panel (OPNL) Front/top Yes No No Chapter 15
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