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Quantum DXi3500 and DXi5500 User’s Guide
177
certain very high-end video capture cards offer improved
performance if connected to a 64-bit PCI bus.
R
RAID
Redundant Array of Independent Disks is a technology through
which several physical storage disks are grouped into an array
that appears to an operating system as one or more physical
devices.
Replication
DXi3500 or DXi5500 system. In the event of a disaster where
the original data was lost, the replicated data can be quickly recovered
from the remote system allowing your business to resume normal
operations.
RS-232C
Short for Recommended Standard-232C, a standard interface
approved by the Electronic Industries Association (EIA) for
connecting serial devices. This standard is for
ASYNCHRONOUS TRANSFER between computer equipment
and accessories. Data is transmitted bit by bit in a serial fashion.
The RS-232 standard defines the function and use of all 25 pins of
a DB-25 type connector.
S
SCSI
Small Computer System Interface. An American National
Standards Institute (ANSI) communications standard for
attaching peripheral equipment to computers.
SCSI-2
A second generation SCSI interface which includes command
sets for magnetic and optical disks, tapes, printers, processors,
CD-ROMs, scanners, medium changers, and communication
devices.
SNMP
Short for
Simple Network Management Protocol
, a set of protocols
for managing complex networks.
T
Terabyte
A unit of measure for digital data equal to approximately 1,000
gigabytes, or 1,099,511,627,776 bytes.
Note:
Data replication is a licensed feature for the DXi3500 and
DXi5500. Contact your Quantum Sales representative for more
information on purchasing this option.