C120-E093-04EN
105
Glossary
Single-Ended
A method of signal transmission deployed in
SCSI,
SCSI-2, Ultra SCSI, UltraWide SCSI, etc. Consists of
a pair of ground and signal lines. One signal is
transmitted using one line. Signal is recognized from
potential between ground line and signal line. The
word Differential corresponds to antithesis.
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 partitioning using the installed System Control
Software.
SMP system
SMP (Symmetric Multiprocessor). A method of
constructing a large server by connecting multiple
processors. SMP system uses shared memory among
multiple processors and the system runs under single
OS. Processors are integrated by mounting LSI on a
back panel and connecting data buses with crossbar
connections. Antithesis is cluster system (memory
distribution type).
SynfinityCluster
Software for constructing cluster systems.
A cluster system enables to construction of a High
Availability system where a maximum of 16 servers
inherit other server's 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 disappearing in case of
disk fault, and data security is greatly improved. All
disk management processes, from installation to
operation and maintenance, can be quickly proceeded
on web browser.
SynfinityFile
File system management software. By comparing
with UNIX standard file system, UFS, SynfinityFile
proceeds high-speed file recovery upon system fault.
By featuring multi-volume, construction of large file
system is possible. Moreover, since distribution of
load generated in I/O processing 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 among
processors, memories, graphics, I/O, networks and
such in a system. Bandwidth is 1.6 GBps.
UPS
Uninterruptible Power Supply. A device intended to
backup a running computer in case of commercial AC
power instantaneous voltage drop (instantaneous
power interruption) by supplying power from its
internal battery. However, note that depending on the
capacity of internal batteries, solo backup by UPS
may not sufficient in case of long term power
interruption. Depending on the type of UPS,
however, in general, power supply by UPS battery is
5 to 20 mins.
Way
A unit of storage unit that is accessible independently
in interleaves in main storage unit. Moreover, in set
associative method in buffer storage, this is a unit of
split mapping.
Wide SCSI
A SCSI interface. Data width is enhanced from 8 bits
to 16 bits.
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