Note- In the case of a dual power feed, connect the power cords in their original positions by
referringto the record that you made before the start of maintenance.
XSCF> diagxbu -y -b 00 -t 01
Note- In the case of a dual power feed, connect the power cords in their original positions by
referringto the record that you made before the start of maintenance.
16.6.2 Inactive/Cold maintenance
1. Connectall the power cords to the power supply unit of the crossbar box
requiringmaintenance.
For details, see "6.5.1 Installing the power cord."
2. Execute the diagxbu command to diagnose the crossbar cables.
Diagnosisis performed when the system board of the chassis connected with the
crossbar cables is not incorporated into the physical partition, or when the
physicalpartition into which the chassis is incorporated is powered off.
Theexa mple below specifies the following:
00:BB-ID ofthe chassist o start the diagnosis
01:BB-ID o ft he destination where the chassis to start the diagnosis is connected
(You can specify one or more of these.)
Tospecif y multiple connection destination BB-IDs, enter a command like
"diagxbu -y -b 00 -t 01 -t 02".
3. Poweron the physical partition requiring maintenance.
Fordetails, see "6.3 Powering On the PhysicalPartition Requiring Maintenance."
4. Closethe rack door.
16.6.3 System-stopped maintenance
1. Connectall the power cords to the power supply unit of the crossbar box
requiringmaintenance.
For details, see "6.5.1 Installing the power cord."
2. Returnto the operation of the XSCF fi rmwarereplacefru command to confirm
thatthe crossbar unit has been incorporated into the system.
For details, see "6.1 Incorporating an FRU into the System with the replacefru
Command."
3. Execute the diagxbu command to diagnose the crossbar cables.
Chapter16 Maintainingthe Crossbar Units of the Crossbar Box 305