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Chapter 7 I/O Unit (IOU) Replacement 7-9
3. Prepare the IOU that is to be replaced.
■ Active replacement:
From the terminal connected to the XSCF, execute the deleteboard command
to dynamically disconnect the target CMU from all the domains that have been
recognized in Step 2 as including the target CMU. (The IOU status can be
checked by executing the showboards command.)
To execute this command, you need the privilege of platform administrator
(platadm) or domain administrator (domainadm). For details, see
Section 4.2.1, “Disconnecting a FRU from a Domain” on page 4-3, and the
SPARC Enterprise M4000/M5000/M8000/M9000 Servers Dynamic Reconfiguration
(DR) User’s Guide . For details on how to log in to XSCF, see the SPARC
Enterprise M3000/M4000/M5000/M8000/M9000 Servers XSCF User’s Guide.
■ Hot replacement:
From the terminal connected to the XSCF, select all the domains that have been
recognized in Step 2 as including the CMU to be replaced, and execute the
poweroff -d command to shut down the domains. (The IOU status can be
checked by executing the showboards command.)
Domain administrator authority is required for executing this command. For
details on how to log in to XSCF, see the SPARC Enterprise
M3000/M4000/M5000/M8000/M9000 Servers XSCF User’s Guide.
4. Use the maintenance menu to select the replacement target IOU. (The
maintenance menu is used up to Step 14.)
The fieldeng permission is required for executing this command.
a. From the console that is connected to XSCF, log in to XSCF, and execute the
replacefru command.As shown in
FIGURE 7-6, the initial page of the
maintenance menu is displayed.
FIGURE 7-6 Initial Page of the Maintenance Menu
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Maintenance/Replacement Menu
Please select a type of FRU to be replaced.
1. CMU/IOU(CPU Memory Board Unit/IO Unit)
2. FAN(Fan Unit)
3. PSU(Power Supply Unit)
4. XSCFU(Extended System Control Facility Unit)
5. DDC_A(DDC for BP_A)
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