Installation guide

20 IBM Eserver xSeries 366 Technical Introduction
򐂰 Includes dual onboard RISC processors for advanced packet parsing
򐂰 Offers backward compatibility with today's 10/100 network
The Broadcom controller also includes software support for failover, layer-3 load balancing,
and comprehensive diagnostics.
Category 5 or better Ethernet cabling is required with RJ-45 connectors. If you plan to
implement a Gigabit Ethernet connection, ensure that your network infrastructure is capable
of the necessary throughput to match the server’s I/O capacity.
Redundancy
The x366 has the following redundancy features to maintain high availability.
򐂰 There are eight hot-swap multi-speed fans. These fans provide cooling redundancy and
enable individual fan replacement without powering down the server. Each of the two
groups of four fans is redundant. In the event of a fan failure, the other fans will speed up
to continue to provide adequate cooling until the fan can be hot-swapped by the IT
administrator. In general, failed fans should be replaced within 48 hours following failure.
򐂰 The two Gigabit Ethernet ports can be configured as a team to form a redundant pair.
򐂰 The memory subsystem has several redundancy features, including memory mirroring
and Memory ProteXion, as described in “System memory” on page 10.
򐂰 Support is available for RAID disk arrays, both with the ServeRAID-8i (for internal RAID
arrays) and the ServeRAID-6M for external arrays. The x366 has six internal hot-swap
disk drive bays.
򐂰 A optional second 1300 W hot-swap power supply is available and connected using a
separate power cord. At 220 V, this second power supply is redundant in all
configurations. At 110 V, the second power supply is redundant except in full
configurations (in which case NONRED will light up on the light path diagnostics panel).
Figure 11 on page 21 displays the layout of the x366, showing the location of the drive bays,
power supplies, and fans.
Important: At 110 V and with a heavily configured server, two power supplies may be
needed; the second power supply may not be redundant.