SPARC T4-4 Servers

The full rack version of the SPARC SuperCluster T4-4 contains four SPARC T4-4 servers. The half rack version of the SPARC SuperCluster T4-4 contains two SPARC T4-4 servers.

Redundancy in the SPARC T4-4 servers is achieved two ways:

• Through connections between the servers (described in SPARC T4-4 Server Physical Connections)

• Through components within the SPARC T4-4 servers:

  • Power supplies – Each SPARC T4-4 server contains four power supplies. The SPARC T4-4 server can continue to operate normally if one or two of those power supplies fails, or if one of the power distribution units fail.

  • Fan modules – Each SPARC T4-4 server contains five fan modules. The SPARC T4-4 server will continue to operate at full capacity if one of the fan modules fails.

  • AC power connectors – Each SPARC T4-4 server contains four AC power connectors at the rear of the server. Only two power connections are required for operation.

  • Disk drives – Each SPARC T4-4 server contains a combination of six hard disk drives and solid-state drives. The SPARC SuperCluster T4-4 software provides redundancy between the six disk drives.

  • Processor modules – Each SPARC T4-4 server contains two processor modules. In the case of a processor module failure, the system will recover and reconfigure around the failed module, preserving access to all disk drives and express modules.