Skip to main content

4.3.2 Precautions for Expansion


4.3.2 Precautions for Expansion
The following describes precautions for expansion.
  1. The only cable that can be used to connect a crossbar box and the chassis of a physical partition is a crossbar cable (optical).
  2. The chassis of physical partitions can be expanded up to 8 for the 2-crossbar-box configuration, and up to 16 for the 4-crossbar-box configuration.
  3. Only system-stopped/cold maintenance is enabled as the maintenance type for expansion from the two-crossbar-box configuration to the four-crossbar-box configuration.
  4. The crossbar box connection rule changes if crossbar boxes are expanded from the two-crossbar-box configuration to the four-crossbar-box configuration. When expanding the crossbar boxes, see "Appendix B Cable Connection Information on Building Block Configurations" in the Fujitsu SPARC M12-2S Installation Guide or "Appendix B Cable Connection Information on Building Block Configurations" in the Fujitsu M10-4S/SPARC M10-4S Installation Guide to connect the crossbar cables.
  5. When expanding the crossbar boxes, see "8.2 Preparation for Expansion" and "9.2 Preparation for Reduction" in the Fujitsu SPARC M12-2S Installation Guide or "Chapter 8 Before Expanding/Reducing a System with a Building Block Configuration" in the Fujitsu M10-4S/SPARC M10-4S Installation Guide.