HP Xw460c - ProLiant - Blade Workstation Огляд - Сторінка 14

Each interconnect module also provides external connectors that vary based on its particular design.

In the c7000 enclosure, pairs of single-wide interconnect modules installed in adjacent horizontal

bays provide redundant connectivity for dual-port interfaces in each device bay. Adjacent

interconnect modules also have high-speed cross-connect capability through the enclosure's NonStop

signal midplane. For double-wide interconnects such as DDR InfiniBand, two modules are installed in

c7000 interconnect bays 5 and 7 to provide redundant high bandwidth connectivity.

NOTE

The c-Class Ethernet Pass-Thru Module only supports fixed-speed

gigabit Ethernet. Because the server, storage, or other option

blades are connected through SerDes to the interconnect bays, and

SerDes Ethernet does not have an auto-negotiation protocol, a

switch is required to connect to 10/100 networks outside of the

enclosure. The NICs themselves are capable of different modes of

operation, but the outbound wiring to which they are connected

does not auto-negotiate. Note that this is a limitation of an Ethernet

Pass-Thru Module only. The Fibre Channel Pass-Thru Module ports

do auto-negotiate.

Server blades

Server blades for the BladeSystem c7000 enclosure are built according to c-Class standard form-

factors referred to as half-height and full-height. The enclosure can hold either full-height or half-height

server blades or a combination of the two. The enclosure is preconfigured with device bay dividers to

house half-height server or storage blades. Dividers must be removed to accommodate full-height

server blades.

For connectivity, every server blade ships with at least two built-in Ethernet connections. To maintain

flexibility, the server blades use optional mezzanine cards to provide additional interconnect fabric

connections such as Gigabit Ethernet, InfiniBand, and Fibre Channel.

Half-height server blades typically have two embedded Gigabit NICs and two c-Class PCIe

mezzanine option connectors. A half-height server configured with one dual-port Gigabit NIC

mezzanine card and one quad-port Gigabit NIC mezzanine card provides eight independent Gigabit

NICs. Full-height server blades typically have four embedded Gigabit NICs and three c-Class PCIe

mezzanine option connectors. A full-height server configured with three quad-port Gigabit NIC

mezzanine cards provides sixteen independent Gigabit NICs. The inherent flexibility of c-Class design

allows customers to configure up to four different interconnect fabrics without sacrificing redundancy

or performance.

The most up-to-date information about c-Class server blades is available at this website:

www.hp.com/go/bladesystem/.

Storage options inside the enclosure provide an alternative to local disk drives or SAN connectivity.

The c7000 enclosure supports several types of storage solutions. Tape and PCI option blades are also

available for c-Class. Each of these blades increases configuration flexibility by adding options that

would not fit inside the server blade.

The StorageWorks SB40c Storage Blade delivers direct attach storage for c-Class server blades, with

support for up to six hot plug small form factor (SFF) SAS or SATA hard disk drives. The enclosure

backplane provides a PCIe connection to the adjacent c-Class server blade and enables high