About The Split Backplane Configurations - Sun Microsystems Fire V890 Service Manual

About the Split Backplane
Configurations
The procedures in this appendix enable you to set up the new split backplane
configurations for Sun Fire V890 servers that are equipped with both a base
backplane and an expansion backplane. Before you perform the procedures:
Verify that the prerequisite firmware patches have been installed. See
■
Patches Required" on page
Check that you have the correct network adapters and data cables. See
■
"Hardware Parts Required" on page
Following are brief descriptions of the new configurations:
Split backplane single-loop configuration. In this configuration, one PCI Dual
■
FC Network Adapter connects to and controls Loop A of the expansion backplane
while the on-board controller manages Loop A of the base backplane. This single-
loop configuration forms two 6-disk arrays and enables each backplane to control
and maintain the integrity of its own FC-AL loop configuration.
Split backplane dual-loop configuration. In this configuration, three PCI Dual
■
FC Network Adapters provide an independent dual-loop capability for each
backplane. The dual-loop configuration provides FC-AL controller redundancy
for each backplane:
■
■
272 Sun Fire V890 Server Service Manual • October 2005
Base backplane. One PCI Dual FC Network Adapter connects to and controls
Loop B of the base backplane. With the on-board controller managing FC-AL
operations on Loop A, the network adapter provides a dual-loop capability for
the base backplane.
Expansion backplane. Two PCI Dual FC Network Adapters connect to the
expansion backplane. One network adapter connects to Loop A, and the
second network adapter connects to Loop B, providing a dual-loop capability
for the expansion backplane.
273.
273.
"Firmware