IBM x3550 M4 Type 7914 Installation And Service Manual page 31

The server supports up to two multi-core microprocessors. The server comes
with a minimum of one microprocessor.
v PCI adapter capabilities
The server has two PCI interface slots (one supports low-profile cards, and one
supports half-length, full-height cards). Slot 2 can support PCI Express or PCI-X
adapters through an optional PCI riser card. See "Replacing an adapter" on page
250 for detailed information.
v Redundant connection
The addition of the optional Ethernet adapter provides failover capability to a
redundant Ethernet connection with the applicable application installed. If a
problem occurs with the primary Ethernet connection and the optional Ethernet
adapter is installed on the server, all Ethernet traffic that is associated with the
primary connection is automatically switched to the optional redundant Ethernet
adapter connection. If the applicable device drivers are installed, this switching
occurs without data loss and without user intervention.
v Redundant cooling and optional power capabilities
The server supports a maximum of two 550-watt or 750-watt hot-swap power
supplies and six dual-motor hot-swap fans, which provide redundancy and
hot-swap capability for a typical configuration. The redundant cooling by the
fans in the server enables continued operation if one of the fans fails. The server
comes with the minimum of one 550-watt or 750-watt hot-swap power supply
and four fans.
You must install the fourth and sixth fans when you install the second
microprocessor in the server. You can order the second optional power supply
for power redundancy.
Note: You cannot mix 550-watt and 750-watt power supplies in the server.
v ServeRAID support
The ServeRAID adapter provides hardware redundant array of independent
disks (RAID) support to create configurations. The standard RAID adapter
provides RAID levels 0, 1, and 10. An optional RAID adapter is available for
purchase.
v Systems-management capabilities
The server comes with an integrated management module II (IMM2). When the
IMM is used with the systems-management software that comes with the server,
you can manage the functions of the server locally and remotely. The IMM also
provides system monitoring, event recording, and network alert capability. The
systems-management connector on the rear of the server is dedicated to the
IMM. The dedicated systems-management connector provides additional
security by physically separating the management network traffic from the
production network. You can use the Setup utility to configure the server to use
a dedicated systems-management network or a shared network.
v UEFI-compliant server firmware
IBM System x Server Firmware (server firmware) offers several features,
including Unified Extensible Firmware Interface (UEFI) 2.1 compliance; Active
Energy Manager technology; enhanced reliability, availability, and serviceability
(RAS) capabilities; and basic input/output system (BIOS) compatibility support.
UEFI replaces the BIOS and defines a standard interface between the operating
system, platform firmware, and external devices. UEFI-compliant System x
servers are capable of booting UEFI-compliant operating systems, BIOS-based
operating systems, and BIOS-based adapters as well as UEFI-compliant adapters.
Note: The server does not support DOS (Disk Operating System).
Chapter 1. The IBM System x3550 M4 server
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