NonStop System Glossary

blade complex
The term that OSM uses to hierarchically differentiate between each blade element in HP Integrity
NonStop NS2000 series, NS1200, and NS1000 servers.
Blade Complex
See HP NonStop Blade Complex (NSBC).
blade element
An HP Integrity rx2620 or rx2660 server adapted for use as a blade element in HP Integrity
NonStop NS2000 series, NS1200, and NS1000 servers. A blade element contains the processor
element, power supplies, fan assemblies, and firmware.
Blade Element
See HP NonStop Blade Element (NSBE).
Blade optics adapter
The part of a NonStop Blade Element that interfaces with the ServerNet fabric.
BladeCluster node
A ServerNet node in a BladeCluster Solution. See also node (page 130).
BladeCluster Solution
The product name for the collection of NonStop systems (nodes) connected together using the
ServerNet 3 interconnect for interprocessor communication across a cluster and within its nodes.
A BladeCluster Solution offers linear system expansion beyond the 16-processor limits of a single
server, achieving comparable speeds for internal and external ServerNet communication. A
BladeCluster Solution supports NonStop BladeSystems, NonStop Carrier Grade BladeSystems,
NonStop NS16000 Series servers, and NonStop NS16000 Series Carrier Grade servers. See
also cluster (page 59), BladeCluster node (page 51), and BladeCluster zone (page 51).
BladeCluster zone
A collection of one to eight nodes in a BladeCluster Solution interconnected by X and Y fabric
Advanced Cluster Hubs. Each node to node connection along a fabric within a zone is a ServerNet
multilane link comprised of two ServerNet 3 links. Each of these node-to-node connections can
have a maximum total distance of 125 meters. The node-to-node connections within a BladeCluster
zone are routed through Advanced Cluster Hubs in each fabric to facilitate cabling. A BladeCluster
Solution can have a maximum of one zone at this release. See also BladeCluster node (page 51)
and BladeCluster Solution (page 51).
block
A grouping of one or more system enclosures that a NonStop S-series system recognizes and
supports as one unit. A block can consist of either one processor enclosure, one I/O enclosure,
or one processor enclosure with one or more I/O enclosures attached.
block special file
In the Open System Services (OSS) environment, a device that is treated as a file for which all
input or output must occur in blocks of data. Traditionally, such files are disk or tape devices. Block
special files provide access to a device in a manner that hides the hardware characteristics of the
device. Contrast with character special file.
B 51