Rack and Server Specifications

All In-Tuition racks and server equipment are specified for maximum redundancy based on experience gained from many years of running highly reliable systems:

• A and B power circuits. Power feeds come from different Power Distribution Units (PDU) for redundancy - if one power circuit should fail, the other circuit is available. Power interruptions are most often as a result of servers’ power supplies failing. This can cause a power spike, which then activates the trip switch on the PDU.

• Servers and Network Switches have two power supplies, one plugged into the A power circuit, the other plugged into the B circuit. If a circuit should fail, the other power supply is already on-line therefore continuity of power supply is maintained with zero downtime.

• Racks and Servers have remote controlled power cycling facilities so that engineers can easily power cycle equipment.

• Servers are connected to at least two core network switches and each connection is at least one 1Gb.