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VR-N100U USERS MANUAL
Page 94 of 98 All Items Are Subject To Change Without Notice Feb. 2004 Rev 1.0
tools and effects available to Photoshop image editor in the Plug-ins folder.
Power-on Sequence
The software-driven, sequential initialization processes tracked by the light phases of the Status
LED that take place when the VR-N100U is plugged into the power source.
PDC
Primary Domain Controller - The primary domain controller is the master controller in the
domain. The primary domain controller is the computer that has been designated to control all
the functions of the domain.
Periodic Update
A feature of the Volume Details screen, which provides the tools to transfer attributes from the
current CD volume in a subscription series to the new CD in the series. In general, this feature
can be used to transfer attributes from one CD volume to any other CD volume.
Primary NDS Server
The first NDS server contacted by VR-N100U when VR-N100U requests NDS directory services.
As this NDS server is the initial point of contact for all VR-N100U’s NDS requests, it is preferable
that it be a local LAN server.
Protocol
A system of communications rules different types of computers and operating systems agree on.
When you use a file-transfer protocol, the two computers involved (the sender and the receiver)
agree on a set of signals that mean figoahead,fl figot it,fl fididn™t get it,fl fiplease resend,fl and
fiall done.fl The Internetinvolves many different protocols for the many different types of
computers that interact on the network.
RARP
Reverse Address Resolution Protocol - A less automated method of assigning IP addresses.
You have to build a table from which IP assignments are made upon request.
Reboot
A reboot of the server performs the operations of a safe halt, but after it closes all programs, it
starts up again in the same way it does when power is initially applied.
Reflash
The process of reprogramming VR-N100U’ flash memory with new instructions.
Router
A computer responsible for deciding the routes network traffic will follow. A router connects two
or more networks, including networks that use different types of cables and different
communication speeds. The networks all have to use IP (Internet Protocol), though. If they don’t,
a gateway is required.
Safe Halt
The safe halt option of the Reboot System Utility terminates all network connections, writes
outstanding data to the hard drive, closes all programs, and prepares the server to have power
removed.
SCSI
Small Computer System Interface - An expansion standard that makes it possible for you to
add up to seven new devices to your computer (each device dealing with single-interface issues
by itself). On the downside, SCSI requires some system overhead, it slows down your
computer’s startup, and it demands that during installation you handle device ID administration
and a process called termination that closes the SCSI circuit.
SCSI bus
The SCSI bus (interface) connects Disk Controller Boards to controllers and hard disks. You
need to properly terminate and address the connected peripherals.
SCSI Expander
A SCSI device that has its own SCSI bus to which up to seven SCSI devices can be attached.
VR-N100U sees a SCSI Expander as a changer and treats the attached devices as LUNs.
Segment
The section or sections of LAN cabling between packet routers or bridges; also known as the
local wire.
Share
A network resource that can be shared. Shares include peripheral devices, volumes and files.
Slave
In the broadest sense, a computer which is controlled by another computer (the master), or a
peripheral device controlled by a computer. An IDE slave is designated as such by a jumper
setting on the device. During initialization, it is a slave to the IDE master-designated device on
an IDE bus. However, after initialization, the two devices essentially operate independently of
each other and as equals.
SMB
Server Message Block - A protocol that intercepts and redirects network-related DOS function
calls and shunts them across the network to the fileserver. SMB is Microsof’s file sharing
protocol. It performs the same services for Windows clients that NCP does for NetWare clients.