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Contents

  1. Preface
  2. Chapter 1 Before Starting Maintenance Work
    1.  1.1 Warning/Caution Indications
    2.  1.2 Labels/Tags
    3.  1.3 Safety Precautions
    4.  1.4 Notes Regarding Static Electricity
    5.  1.5 Other Precautions
    6.  1.6 Emergency Power Off
  3. Chapter 2 Understanding the System Components
    1.  2.1 Identifying the Names and Locations of Components
    2. Click 2.2 Confirming the Functions of the Operation Panel
    3. Click 2.3 Checking the LED Indications
    4. Click 2.4 Confirming the Types of Cable
  4. Chapter 3 Types of Maintenance
    1. Click 3.1 Types of Maintenance Supported for the Crossbar Box
    2.  3.2 Active Maintenance
    3.  3.3 Inactive Maintenance
    4.  3.4 System-Stopped Maintenance
  5. Chapter 4 Preparation and Precautions for Maintenance
    1. Click 4.1 Confirming the System Configuration
    2. Click 4.2 Troubleshooting
    3. Click 4.3 Maintenance Precautions
  6. Chapter 5 Enabling the Removal of a FRU Requiring Maintenance
    1.  5.1 Preparing Tools Required for Maintenance
    2. Click 5.2 Releasing the Chassis for a Connecting Physical Partition From the System
    3.  5.3 Saving XSCF Setting Information
    4. Click 5.4 Releasing FRUs of the Crossbar Box From the System With the replacefru Command
    5. Click 5.5 Accessing a FRU
  7. Chapter 6 Restoring the System
    1. Click 6.1 Restoring the Chassis
    2. Click 6.2 Incorporating the FRUs of the Crossbar Box Into the System With the replacefru Command
    3. Click 6.3 Diagnosing a Replacement FRU
    4.  6.4 Restoring XSCF Setting Information
    5.  6.5 Incorporating a Chassis Into a Physical Partition
    6.  6.6 Returning the Mode Switch to Locked Mode
    7.  6.7 Powering On the Physical Partition Requiring Maintenance
    8. Click 6.8 Starting the Entire System
  8. Chapter 7 Maintenance Flow
    1.  7.1 Maintenance Workflow
    2.  7.2 Active Maintenance Flow
    3.  7.3 Inactive Maintenance Flow
    4. Click 7.4 System-Stopped Maintenance Flow
  9. Chapter 8 Maintaining the XSCF Unit
    1.  8.1 Before Maintaining an XSCF Unit
    2.  8.2 Location of the XSCF Unit
    3.  8.3 Maintenance Precautions
    4.  8.4 Removing the XSCF Unit
    5.  8.5 Switching the microSD Card
    6.  8.6 Installing the XSCF Unit
    7.  8.7 Checking the XCP Firmware Version
  10. Chapter 9 Maintaining the XSCF BB Control Cables
    1.  9.1 Before Maintaining an XSCF BB Control Cable
    2.  9.2 Configuration of the XSCF BB Control Ports
    3.  9.3 Removing an XSCF BB Control Cable
    4.  9.4 Installing an XSCF BB Control Cable
  11. Chapter 10 Maintaining the XSCF DUAL Control Cables
    1.  10.1 Before Maintaining an XSCF DUAL Control Cable
    2.  10.2 Configuration of the XSCF DUAL Control Ports
    3.  10.3 Removing an XSCF DUAL Control Cable
    4.  10.4 Installing an XSCF DUAL Control Cable
  12. Chapter 11 Maintaining the Crossbar Cables (Optical)
    1.  11.1 Before Maintaining a Crossbar Cable (Optical)
    2.  11.2 Configuration of Connection Ports for Crossbar Cables (Optical)
    3.  11.3 Removing a Crossbar Cable (Optical)
    4.  11.4 Installing a Crossbar Cable (Optical)
  13. Chapter 12 Maintaining the Crossbar Units
    1.  12.1 Before Maintaining a Crossbar Unit
    2.  12.2 Configuration of the Crossbar Units
    3.  12.3 Removing a Crossbar Unit
    4.  12.4 Installing a Crossbar Unit
  14. Chapter 13 Maintaining the Power Supply Units
    1.  13.1 Before Maintaining a Power Supply Unit
    2.  13.2 Configuration of the Power Supply Units
    3.  13.3 Removing a Power Supply Unit
    4.  13.4 Installing a Power Supply Unit
  15. Chapter 14 Maintaining the XSCF Interface Unit
    1.  14.1 Before Maintaining an XSCF Interface Unit
    2.  14.2 Location of the XSCF Interface Unit
    3.  14.3 Maintenance Precautions
    4.  14.4 Removing the XSCF Interface Unit
    5.  14.5 Installing the XSCF Interface Unit
  16. Chapter 15 Maintaining the Fan Units
    1.  15.1 Before Maintaining a Fan Unit
    2.  15.2 Configuration of the Fan Units
    3. Click 15.3 Removing a Fan Unit
    4. Click 15.4 Installing a Fan Unit
  17. Chapter 16 Maintaining the Fan Backplane
    1.  16.1 Before Maintaining a Fan Backplane
    2.  16.2 Configuration of the Fan Backplane
    3. Click 16.3 Removing the Fan Backplane
    4. Click 16.4 Installing the Fan Backplane
  18. Chapter 17 Maintaining the Operation Panel
    1.  17.1 Before Maintaining the Operation Panel
    2.  17.2 Location of the Operation Panel
    3.  17.3 Maintenance Precautions
    4. Click 17.4 Removing the Operation Panel
    5. Click 17.5 Installing the Operation Panel
  19. Chapter 18 Maintaining the Cable Kit
    1.  18.1 Before Maintaining a Cable Kit
    2. Click 18.2 Configuration of the Cable Kit
    3. Click 18.3 Removing the Cable Kit
    4. Click 18.4 Installing the Cable Kit
  20. Chapter 19 Maintaining the Crossbar Backplane Unit
    1.  19.1 Before Maintaining a Crossbar Backplane Unit
    2.  19.2 Location of the Crossbar Backplane Unit
    3.  19.3 Removing the Crossbar Backplane Unit
    4.  19.4 Installing the Crossbar Backplane Unit
  21. Chapter 20 Maintaining the Dedicated Power Distribution Unit Mounted on the Rack for Expanded Connection
    1.  20.1 Before Maintaining a Dedicated Power Distribution Unit
    2. Click 20.2 Configuration of the Dedicated Power Distribution Unit
    3. Click 20.3 Removing the Dedicated Power Distribution Unit
    4.  20.4 Installing the Dedicated Power Distribution Unit
  22. Appendix A Component List
  23. Appendix B Component Specifications
    1.  B.1 Crossbar Unit
    2.  B.2 XSCF Unit
    3.  B.3 XSCF Interface Unit
    4.  B.4 Power Supply Unit
    5.  B.5 Fan Unit
    6.  B.6 Various Backplanes
    7.  B.7 Operation Panel
  24. Appendix C External Interface Specifications
    1. Click C.1 Serial Port
    2.  C.2 USB Port
    3.  C.3 RESET Switch
  25. Appendix D Removing the Lithium Battery
    1.  D.1 Location of the Lithium Battery
    2.  D.2 Removing the Lithium Battery

7.3 Inactive Maintenance Flow


7.3 Inactive Maintenance Flow
This section describes the workflow for performing the inactive replacement of the XSCF BB control cable and the crossbar cable that connect the crossbar box to the SPARC M12-2S or the SPARC M10-4S.
Note - Maintenance is not available in the inactive/cold state for the FRUs mounted on the crossbar box. During inactive maintenance, the physical partition to which a FRU requiring maintenance belongs is stopped, but other physical partitions may be operating. Therefore, only hot maintenance can be performed with the power cord of the crossbar box connected.
Note - The maintenance workflow and procedure for the following FRUs are the same as those for active maintenance even when the physical partition is in the inactive state. For inactive maintenance of these FRUs, see "7.2 Active Maintenance Flow."
- XSCF unit

- XSCF DUAL control cable

- XSCF BB control cable (connecting crossbar boxes to each other)

- Power supply unit

- Fan unit

- Dedicated power distribution unit mounted on the rack for expanded connection
Figure 7-11 shows FRUs with inactive/cold maintenance enabled.
Figure 7-11  FRUs With Inactive/Cold Maintenance Enabled
Figure 7-11 FRUs With Inactive/Cold Maintenance Enabled
Inactive/Cold maintenance has the following patterns:
Inactive/Cold Replacement of the XSCF BB Control Cable (Connecting the Crossbar Box to the SPARC M12-2S/M10-4S)
Inactive/Cold replacement can be performed on the XSCF BB control cable connecting the crossbar box to the SPARC M12-2S/M10-4S. Perform the following procedure to replace it.
Figure 7-12   Flow of Inactive/Cold Replacement of the XSCF BB Control Cable (Connecting the Crossbar Box to the SPARC M12-2S/M10-4S)
Figure 7-12 <span class= Flow of Inactive/Cold Replacement of the XSCF BB Control Cable (Connecting the Crossbar Box to the SPARC M12-2S/M10-4S)"/>
Table 7-10  Work Procedure for Inactive/Cold Replacement of the XSCF BB Control Cable (Connecting the Crossbar Box to the SPARC M12-2S/M10-4S)
Item
 Work Procedure Reference
1 Opening the rack door  
2 Switching the mode switch on the operation panel to Service mode "5.2.2 Switching the Mode Switch to Service Mode"
3 Checking the operating condition of the system "5.2.1 Checking the Operating Condition of the Physical Partition or Logical Domain"
4 Powering off the physical partition to which the SPARC M12-2S or SPARC M10-4S with the XSCF BB control cable requiring replacement connected belongs "5.2.4 Powering Off a Connecting Physical Partition"
5 Releasing the SPARC M12-2S or SPARC M10-4S chassis, to which the XSCF BB control cable requiring replacement is connected, from the system "5.4.2 Releasing FRUs in the Chassis of the Physical Partition"
6 Removing all the power cords of the SPARC M12-2S or SPARC M10-4S chassis to which the XSCF BB control cable requiring replacement is connected "Removing the Power Cord of the SPARC M12-2S or the SPARC M10-4S"
in "5.5.1 Removing the Power Cord"
7 Removing the XSCF BB control cable requiring replacement "9.3 Removing an XSCF BB Control Cable"
8 Installing a new XSCF BB control cable "9.4 Installing an XSCF BB Control Cable"
9 Connecting all the power cords to the SPARC M12-2S or SPARC M10-4S chassis to which the replaced XSCF BB control cable is connected "Connecting the Power Cord to the SPARC M12-2S or the SPARC M10-4S"
in "6.1.1 Installing the Power Cord"
10 Incorporating the released SPARC M12-2S or SPARC M10-4S chassis into the physical partition "6.2.2 Restoring the FRUs of the Chassis of the Physical Partition"
11 Confirming that there is no problem with the replacement XSCF BB control cable "6.3.2 Checking the FRU Status After Maintenance"
12 Switching the mode switch on the operation panel to Locked mode "6.6 Returning the Mode Switch to Locked Mode"
13 Activating the physical partition to which the SPARC M12-2S or SPARC M10-4S with the replacement XSCF BB control cable belongs "6.7 Powering On the Physical Partition Requiring Maintenance"
14 Closing the rack door  
Inactive/Cold Replacement of the Crossbar Cable
Inactive/Cold replacement can be performed on the crossbar cable. Perform the following procedure to replace it.
Figure 7-13  Flow of Inactive/Cold Replacement of the Crossbar Cable
Figure 7-13 Flow of Inactive/Cold Replacement of the Crossbar Cable
Table 7-11  Work Procedure for Inactive/Cold Replacement of the Crossbar Cable
Item
 Work Procedure Reference
1 Opening the rack door  
2 Switching the mode switch on the operation panel to Service mode "5.2.2 Switching the Mode Switch to Service Mode"
3 Checking the operating condition of the system "5.2.1 Checking the Operating Condition of the Physical Partition or Logical Domain"
4 Powering off the physical partition to which the SPARC M12-2S or SPARC M10-4S with the crossbar cable requiring replacement connected belongs "5.2.4 Powering Off a Connecting Physical Partition"
5 Releasing the SPARC M12-2S or SPARC M10-4S chassis, to which the crossbar cable requiring replacement is connected, from the system "5.4.2 Releasing FRUs in the Chassis of the Physical Partition"
6 Removing all the power cords of the SPARC M12-2S or SPARC M10-4S chassis to which the crossbar cable requiring replacement is connected "Removing the Power Cord of the SPARC M12-2S or the SPARC M10-4S"
in "5.5.1 Removing the Power Cord"
7 Removing the crossbar cable requiring replacement "11.3 Removing a Crossbar Cable (Optical)"
8 Installing a new crossbar cable "11.4 Installing a Crossbar Cable (Optical)"
9 Connecting all the power cords to the SPARC M12-2S or SPARC M10-4S chassis to which the replaced crossbar cable is connected "Connecting the Power Cord to the SPARC M12-2S or the SPARC M10-4S"
in "6.1.1 Installing the Power Cord"
10 Incorporating the released SPARC M12-2S or SPARC M10-4S chassis into the physical partition "6.2.2 Restoring the FRUs of the Chassis of the Physical Partition"
11 Diagnosing the crossbar cable "6.3.1 Diagnosing the Crossbar Unit and Crossbar Cables"
12 Confirming that there is no problem with the replacement crossbar cable "6.3.2 Checking the FRU Status After Maintenance"
13 Switching the mode switch on the operation panel to Locked mode "6.6 Returning the Mode Switch to Locked Mode"
14 Activating the physical partition to which the SPARC M12-2S or SPARC M10-4S with the replacement crossbar cable belongs "6.7 Powering On the Physical Partition Requiring Maintenance"
15 Closing the rack door  

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