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RDX A8 User and Service Guide — Version 1.0
3. Glossary
CRU Customer Replaceable Unit is easily replaceable module designed to enable
customer serviceability of the RDX A8 unit. CRU’s can be exchanged by the end
use customer without tools to support field renew/repair of either the cooling fan
or power supply system.
DHCP The Dynamic Host Configuration Protocol is an automatic configuration protocol
used on IP networks. Computers that are connected to IP networks must be
configured before they can communicate with other computers on the network.
DHCP allows a computer to be configured automatically.
DNS The Domain Name System is a hierarchical naming system built on a distributed
database for computers, services, or any resource connected to the Internet or
a private network. Most importantly, it translates domain names meaningful to
humans into the numerical identifiers associated with networking equipment for
the purpose of locating and addressing these devices worldwide.
Disk Refers either to a HDD unit or the direct block addressing scheme used to store
and retrieve digital data on the HDD. When the RDX A8 unit is in disk mode direct
block addressing is used to access the contained RDX media.
ESD Electro Static Discharge is the sudden and momentary electric current that flows
between two objects at different electrical potentials The term is usually used in the
electronics and other industries to describe momentary unwanted currents
that may cause damage to electronic equipment.
HDD Hard Disk Drive refers to the core storage device using rotating magnetic media to
store digital information. RDX cartridges make use of embedded HDD’s to store data.
iSCSI Internet Small Computer System Interface, an Internet Protocol (IP)-based storage
networking standard for linking data storage facilities. By carrying SCSI commands
over IP networks.
iSNS Internet Storage Name Service, protocol that allows automated discovery,
management and configuration of iSCSI devices on a TCP/IP network.
LED Light Emitting Diode is a semiconductor light source. The RDX A8 uses LED’s to
provide power switch, eject button, and cartridge status indication. LED technology
is also used to provide the backlighting for the LCD display used in the OCP.
MTU In computer networking, the Maximum Transmission Unit of a communications
protocol of a layer is the size (in bytes) of the largest protocol data unit that the
layer can pass onwards. MTU parameters usually appear in association with a
communications interface (NIC, serial port, etc.).
OCP Operator Control Panel includes display, buttons and LED’s and enables the user
to operate the unit from the front
RDX Is a removable disk technology originally developed by ProStor.
RDX A8 Manager Remote Management Interface provides the capability to operate the unit through
a web based remote management interface
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