ServerNet Cluster 6780 Planning and Installation Guide (G06.28+, H06.05+)

Table Of Contents
Glossary
ServerNet Cluster 6780 Planning and Installation Guide527301-005
Glossary-29
system expansion
system expansion. The process of making a target system larger by adding enclosures to
it. The enclosures being added can be either new enclosures or enclosures from a
donor system. Contrast with system reduction.
system image tape (SIT). A tape that can be used to perform a system load on a system if
the system subvolume has become corrupted on both $SYSTEM disks. The tape
contains a minimum set of software necessary to bring up and run the system. Use the
SIT only for disaster recovery. It is not needed for normal system load. Contact the
Global Customer Support Center (GCSC) before loading the system from a SIT. Many
additional steps are required to restore your system to working order.
system load. (1) To start the system; to load the HP NonStop™ operating system image
into the memory of a processor. (2) The process of loading the operating system. A
system load changes a system from an inactive to an active (or operational) state by
loading software that establishes communication between the operating system and
configured system peripherals.
system number. See Expand node number.
system reduction. The process of making a donor system smaller by removing enclosures
from it. The enclosures removed from a donor system might be added to a target
system. Contrast with system expansion.
system resizing. See system expansion or system reduction.
system serial number. A unique identifier, typically five or six alphanumeric characters,
assigned to a NonStop S-series server when it is built.
TACL. The user interface to the HP NonStop™ operating system. The TACL product is both
a command interpreter and a command language. Users can write TACL programs
that perform complex tasks simply or provide a consistent user interface across
independently programmed applications.
TB. See terabyte (TB)
.
TCP/IP. See Transmission Control Protocol over Internet Protocol (TCP/IP)
.
terabyte (TB). A unit of measurement equal to 1,099,511,627,776 bytes (1024 gigabytes).
See also gigabyte (GB), kilobyte (KB), and megabyte (MB).
Tetra 8 topology. A tetrahedral topology of NonStop S-series servers that allows a
maximum of four processor enclosures (eight processors) and eight I/O enclosures.
See also tetrahedral topology. Contrast with Tetra 16 topology.
Tetra 16 topology. A tetrahedral topology of NonStop S-series servers that allows a
maximum of eight processor enclosures (16 processors). The maximum number of I/O
enclosures allowed by the Tetra 16 topology varies depending on the software release
and the server model. See also tetrahedral topology. Contrast with Tetra 8 topology.