EMC DL3D 1500 Administrator's Manual page 232

Glossary
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.
RAID logical unit A not-necessarily-proper subset of the blocks within a RAID set
presented in the appearance of a single disk. Note: this is consistent
with RAID Advisory Board (RAB).
RAID set A collection of disks used together to support one or more RAID
logical units. Note: this is consistent with RAID Advisory Board
(RAB).
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.
Soft zoning
Zoning that is implemented in software. Soft zoning uses filtering
implemented in fibre channel switches to prevent ports from being
seen from outside of their assigned zones. The security vulnerability
in soft zoning is that the ports are still accessible if the user in another
zone correctly guesses the fibre channel address.
232 EMC DL3D 1500 and DL3D 3000 Administrator's Guide