Sun Microsystems SPARC Series, Service Manual

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Chapter 4 FRU Replacement Preparation 4-3
component is a hard disk drive, it is called an HDD dummy, and if such a
component is a PCIe card, it is called a PCIe slot cover. These components are
necessary to protect the server from noise and to properly cool the server.
The same methods as those used for replacement are used for installation.
Note – When installing a new component in an empty slot, remove the HDD
dummy or PCIe slot cover and then install a new 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) 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 has a redundant configuration only when disk mirroring software is used.
■
If a hard disk drive is an unmirrored boot device, it must be replaced by using the cold replacement procedure. However, if a boot
device can be disconnected by means of a Solaris OS function or disk mirroring software function, active replacement can also be
performed. The procedure for disconnecting a hard disk drive varies depending on the software being used. For details, see the man-
uals for the relevant software.
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