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Glossary
SCSI
Small Computer System Interface. A parallel I/
O bus standardized in 1986 as ANSI X3.131-
1986. This interface uses eight bits width
transfer and supports daisy chaining up to eight
devices. Data transfer rate is 5 Mbps.
SMC
System Management Console. A workstation
which controls and operates the main unit. The
SMC can check the hardware configuration of
the main unit and set partitions using the
installed system console software.
SMP system
SMP (Symmetric Multiprocessor). A method
of configuring a large server by connecting
multiple processors. SMP system uses shared
memory among multiple processors and the
system runs under a single OS.
SynfinityCluster/
PRIMECLUSTER
Software for configuring cluster systems.
A cluster system enables construction of a high
availability system where a maximum of 16
servers inherit other servers’ applications in
case of a server malfunction.
Construction of a parallel database system is
possible by combining with databases of
SymfoWARE Server, Oracle, and so on.
SynfinityDisk
Software that performs disk management.
Establishes mirroring among disks that are
deployed in the business server field mostly.
This feature is capable of preventing data loss
in case of disk fault, and data security is greatly
improved. All disk management processes,
from installation to operation and maintenance,
can be performed easily using a web browser.
SynfinityFile
File system management software. In
comparison with UNIX standard file system,
UFS, SynfinityFile proceeds with high-speed
file recovery upon system fault. Using a multi-
volume feature, construction of large file
systems is possible. Moreover, since
distribution of the I/O load is possible,
performance of write- / read- access to disk is
greatly improved.
UPA
Ultra Port Architecture. Interconnection based
on the crossbar method, packet exchange type
for controlling of various data transmissions
within a system among processors, memories,
graphics, I/O, networks and so on.
UPS
Uninterruptible Power Supply. A device
intended to backup a running computer in case
of commercial AC power instantaneous
voltage drop (power interruption) by supplying
power from its internal battery. However, note
that depending on the capacity of internal
batteries, backup by UPS may not be sufficient
in case of long term power interruption. UPS
battery power varies depending on the type of
UPS, but in general will supply system power
for 5 to 20 minutes.
way
A unit of storage that is accessible
independently in interleaves in main storage
unit. Using the set associative method in buffer
storage, this is a unit of split mapping.
