NonStop NS1000 Planning Guide (H06.05+)

Integrity NonStop NS1000 System Description
HP Integrity NonStop NS1000 Planning Guide—542527-004
4-3
Blade Element
In the term ServerNet fabric, the word fabric is significant because it contrasts with the
concept of a bus. A bus provides a single, fixed communications path between start
and end points. A fabric is a complex web of links between electronic routers that
provide a large number of possible paths from one point to another. Two ServerNet
communications fabrics, the X and Y, provide redundant, fault-tolerant communications
pathways. If a hardware fault occurs on one of the ServerNet fabrics, communication
continues on the other with hardware fault recovery transparent to all but the lowest
level of the OS.
Input/output components usually tap into the ServerNet fabrics through ServerNet
adapters located in the IOAM enclosure in the preceding diagram of the NSVA. These
adapters provide the system I/O to Fibre Channel storage devices and gigabit Ethernet
communications networks.
Even though the hardware architecture differs from one series of NonStop servers to
another, the Integrity NonStop NS1000 system can be networked with other NonStop
systems using the same message system and the same network software.
In summary, these terms describe specific components in the NSVA:
Blade Element
Integrity NonStop NS1000 servers implement the HP NonStop Value Architecture
(NSVA) using blade elements along with various combinations of modular hardware
installed in modular cabinets supplied by HP. The blade element for an Integrity
NonStop NS1000 server is an HP Integrity rx2620 server. For a description of the HP
Integrity rx2620 server, refer to the HP Cybrary: rx2620 Home Page:
http://cybrary.inet.cpqcorp.net/HW/SYS/INTEL/SERVER/SERVER_RX262
0/index.html
All Integrity NonStop NS1000 server components are field-replaceable units (FRUs)
that can only be serviced by service providers trained by HP.
For information about installing Integrity NonStop NS-series server hardware, refer to
the NonStop NS-Series Hardware Installation Manual. For information about installing
Term Description
Processor
element (PE)
A single microprocessor with its associated memory. In an Integrity
NonStop NS1000 system:
•
A blade element contains one PE.
•
OSM uses the term logical processor to hierarchically reference a
specific PE in a blade element.
Blade element An HP Integrity rx2620 server that contains the PE, power supplies, fan
assemblies, and firmware. An Integrity NonStop NS1000 system includes
up to eight blade elements.
Blade complex In an Integrity NonStop NS1000 system, OSM uses this term to
hierarchically differentiate between each blade element.