IBM HS21 - BladeCenter - 8853 Product Manual - page 11
Workhorse 2-socket dual and quad-core Intel Xeon blade server
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11.
I/O slots — The HS21 supports the addition of a PCI I/O Expansion Unit II, which provides two
front-accessible PCI-X slots. Also, the Storage and I/O Expansion Unit provides two
additional adapter slots: either
two legacy PCI-X cards or one PCI-X and one PCIe slot. (The
first PCI-X card added must be a Gigabit Ethernet card.) Adding a 30mm
Memory and I/O
Expansion Unit to an HS21 provides a PCIe slot and a second PCI-X slot.
External Storage — TheIBM TotalStorage DS3000, DS4000, DS6000, and DS8000 series, as
well as the
System Storage DS4000, N3000, N5000, and N7000 series, comprise a powerful
and broad shared storage family with integrated management software designed to meet
midrange and enterprise needs. For lower-end needs, IBM offers the TotalStorage
DS300 and
DS400 storage enclosures.
Additionally, external LAN-attached tape storage is available.
Communication Modules — The various BladeCenter chassis support integrated
communication and I/O switches and/or bridges for Gigabit Ethernet, Myricom, Fibre Channel,
InfiniBand, and others. Expansion adapters for individual HS21 blades are available to interface
with these modules.
Rear Door Heat eXchanger — The unit attaches to the back of an IBM S2 42U Enterprise
Rack. It is capable of removing up to 50,000 BTUs (14KVa) from the data center using water
lines under the raised floor. The door swings open for servicing.
Redundant features — Optional power supply modules, blower modules, management
modules, switches and bridges provide redundancy for the various BladeCenter chassis.
HS21 Images
Front View
Interior View
Processors
4 DIMM Sockets
PCIe
Connector
Redundant
Midplane
Connectors
2 SFF
SAS
HDDs
Memory
Controller
Storage
Connector
SAS
Controller
2-port
Ethernet
Controller
I/O Expansion
Connector
VRMs
Light Path
Diagnostics
Hexagonal Grill Holes
Lower-Profile Hot-Swap Handles
Diagnostic
LEDs
KVM Button