Components; Fibre Channel Hub - IBM TotalStorage 300 Service Manual

Components

The following sections show the components of the engine.
Note: The hot-swap features of the engine enable you to remove and replace hard
The following is a list of compnents found in each engine:
Microprocessors
Memory modules
Non hot-swap drives
Hot-swap hard disk drive
Hot-swap fans
Hot-swap power supplies
PCI adapters

Fibre Channel hub

The IBM NAS 300 Fibre Channel hub is an eight-port Fibre Channel hub that
includes seven fixed short-wave optic ports, one gigabit interface converter (GBIC)
port, and an operating system for building and managing a switched-loop
architecture.
The hub is a high-performance fiber optic hub with the following characteristics:
v Easy-to-use — After the power-on self-test (POST) completes, you need only to
v Flexible — GBIC modules and fixed optic ports support fibre transmission media.
v Reliable — Hub uses highly integrated, multifunction application specific
v High Performance — Hub has a data transfer latency of less than 2
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IBM NAS 300 Service Guide
disk drives, power supplies, and fans without powering off the engine.
Therefore, you can maintain the availability of your system while a hot-swap
device is removed or replaced.
Each engine comes with two 933 MHz Pentium III processors.
Each engine contains two 512 MB memory modules.
Each engine contains a 3.5–inch diskette drive and a compact disk drive.
Each engine comes with one hot-swap hard disk drive. This drive is used
by the engine's operating system.
Each engine has three interchangeable hot-swap and redundant fans. If
one fan fails, the other fans continues to operate. All fans must be installed
to maintain proper cooling within your engine, even if one fan is not
operational.
Each engine comes with two hot-swap power supplies. Both power supplies
must be installed to maintain proper cooling.
Each engine has four available PCI slots. You can add optional Ethernet,
ASM, and SCSI adapters. For more information about optional adapters,
refer to the IBM NAS 300 Installation Guide.
add the IP address of the hub. The remainder of the hub's configuration is
automated.
integrated circuit (ASIC) components.
microseconds transferring data from any port ot any port at peak Fibre Channel
bandwidth of 100 MB per second when there is no port contention.