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a Smart Array controller to enable hardware-based RAID configurations. A mezzanine card is not
required to connect a half-height server blade to a direct attach storage blade.
However, a full-height server blade does require a mezzanine card to connect to the direct attach
storage blade. The card must be in the Mezzanine 3 connector to allow full use of the interconnect
bays with Type I or Type II mezzanine cards, to be consistent with the half-height server blades, and
to enable mixing half-height and full-height server blades in the same enclosure. Additional options for
mezzanine cards are discussed in the following section.
NOTE
Because the direct attach storage blade must be in the bottom bay
when used with a full-height server blade, a blank must be
attached above the storage blade to block the empty upper bay, or
a half-height server blade must be inserted into the upper bay. For
the latter configuration, the storage blade should be installed
before the half-height server blade is installed, and the half-height
server blade should be removed before the storage blade is
removed.
HP also offers shared storage blades and shared storage arrays for the c3000 enclosure. Internal to
an enclosure, the HP StorageWorks All-in-One (AiO) SB600c shared storage blade requires two
adjacent half height device bays. The AiO SB600c shared storage device uses Windows Storage
Server, which can be configured as either file-based network-attached storage (NAS) or as block-
based iSCSI storage area network (SAN). The SB600c has approximately 1 TB of usable shared
storage capacity. The shared storage blade can be attached to server blades within or outside the
enclosure by using one or more Ethernet interconnect modules in the rear of the c3000 enclosure. The
Ethernet switches can be configured with iSCSI dedicated VLANs for isolating storage networks and
improving I/O performance.
The c3000 enclosure can also connect to a variety of external shared storage arrays and devices,
such as iSCSI, Fibre Channel, Serial Attached SCSI, and InfiniBand based storage arrays.
The most up-to-date information about the HP StorageWorks storage blade solutions is available at
http://h18004.www1.hp.com/products/blades/components/c-class-storageworks.html.
Mezzanine cards
HP offers a variety of mezzanine card options to provide connectivity to outside networks and
storage. HP ProLiant c-Class server blades use two types of mezzanine cards to connect to the various
interconnect fabrics such as Fibre Channel, Ethernet, serial-attached SCSI, or InfiniBand. Type I (x4)
and Type II (x8) mezzanine cards differ only in the amount of power allocated to them by the server
and in the physical space they occupy on the server blade. Type I mezzanine cards have slightly less
power available to them and are slightly smaller. Type I mezzanine cards are compatible with all
ProLiant c-Class server blades in all mezzanine connectors. Type II mezzanine cards are compatible
with Mezzanine 2 or 3 connectors in full-height c-Class server blades. Type II mezzanine cards are
also compatible with Mezzanine 2 connectors in half-height c-Class server blades.
NOTE
For all server blades other than the BL680c G5 and BL685c G5,
the InfiniBand 4x DDR single-port mezzanine card should be
placed in Mezzanine 2 or Mezzanine 3 connectors for maximum
performance. For the BL680c G5 and BL685c G5, the InfiniBand
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