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AMASS Overview
6-00026-01 Rev A Glossary GL-9
S
scattered writes
If multiple writes occur to a single
volume group, AMASS uses more than
one drive to simultaneously write to the
volume group. This increases
throughput.
SCSI Fast/Wide
Small Computer System Interface. An
intelligent bus-level device interface.
Refers to a combination of Fast transfer
rate (10 MB per second) with a two-byte
wide (68 pins) connector, which results
in 20 MB/sec data transfer rate.
server
Programs running on a network server
provide computing or data services to a
client. Part of a client/server architecture.
SLD
Service Locator Daemon component of
DataMgr. The SLD maps the name of a
DataMgr service (BFS, SSD) to the
archiving service (AMASS).
slot
Referred to as a bin in some libraries. The
physical home storage slot where a single
piece of media resides. In standalone
drives, the slot is the same as the drive,
but in all other libraries that is not true.
SMP
Symmetric Multiprocessing. Making
efficient use of multiple processors
within a computer.
space pool
A special volume group that contains
formatted volumes. The volumes in the
space pool are used by numeric volume
groups that have run out of space. When
a volume group runs out of space,
AMASS automatically takes a volume
from the space pool and reassigns it to the
out-of-space volume group.
SSD
Storage Server Daemon component of
DataMgr. The SSD provides an RPC
interface from DataMgr clients to
AMASS.
standalone drives
A storage device for data containing a
single drive. Usually, media is loaded
manually in a standalone drive. See also
jukebox and library.
Storage Area Network
A storage area network (SAN) is a
dedicated high-speed Fibre channel
topology. The application servers are
attached to the storage devices for
specific tasks.