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25-2 SPARC Enterprise M8000/M9000 Servers Service Manual • June 2010
Some FRUs can be actively added or actively deleted:
■ Active addition or removal of a CMU or IOU is possible using the DR function.
■ Maintenance or addition of a DIMM module involves removing or installing a
CMU.
■ Active addition or removal of PCI cards (including link cards) is possible using
the PHP function.
■ Active addition of TAPEUs is possible
Caution – For deletion, a filler panel (TABLE 25-1) must be installed in the empty
slot. Without filler panels, the system might overheat.
25.1 Addition
Some steps for adding a FRU are the same as for replacing a FRU. For more details,
refer to the appropriate chapter on FRU replacement.
25.1.1 Active Addition
First, select a unit to be added as described below.
1. Log in to the XSCF.
2. Execute the addition command (addfru).
3. When the following addition menu is displayed, select the type of FRU to be
added.
TABLE 25-1 Filler Panels
Slot location Filler panel name
CMU CMU filler panel
IOU IOU filler panel
PCI PCI filler panel
XSCF> addfru