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TeraStation User Manual 153
Glossary
AFP (Apple Filing Protocol)
The name of protocol that is used for AppleShare to
share le on AppleTalk Network.
Degrade
Drives which consists of RAID 1, 5, 10 are failed or
missing. The integrity of data will be maintained, but
the error occurs after this cannot be repaired, and
all data may be lost. It is a dangerous condition. It is
recommended that you replace the hard drive with an
error.
DHCP (Dynamic Host Conguration Protocol) Server
DHCP Server manages information related to the
network (such as IP address, default router’s IP address,
and domain name). When DHCP Client is launched, it
will automatically assign information such as IP address.
When DHCP server exists on the network, you don’t
need to set the information such as IP address to the
computers or the TeraStations on the network.
DFS (Distributed File System)
Feature to gather le shares distributed on the server
within the network to one single tree.
Domain
On Windows 7/Vista/XP/2000/NT based network, it
logically groups multiple computers.
Firewall
It is the feature to prevent the intruder from entering
the network. This feature is included in the OS such
as Windows XP or later or anti-virus software (such as
released by Microtrend or Virus Buster).
FTP (File Transfer Protocol)
The protocol which is used to transfer les on the
network consisted of TCP/IP. Transfer is made by using
the FTP client software. Transfer can be performed
independent on OS.
Gateway
Device, computer or software which connect network
to network. Packets will pass through when it goes
outside.
Hot Spare
The feature to replace a damaged hard drive with a
spare drive automatically.
Hot Swap
It means plugging and unplugging the parts while the
main power of the unit is ON.
IP Address
The address used at the network which uses TCP/
IP protocol. It is like the identication number which
indicates an address of each computer. It is not
recognized properly if IP address of the network devices
are duplicated
Journaling File System
The le system which has the ability to backup the
le update history in order to recover the hard drives
immediately when they malfunction.
Jumbo Frame
Extends data size per transmission on the LAN
from 1518 bytes to Jumbo Frame (4102/7422/9694
bytes).
MAC (Media Access Control) address
The unique physical address assigned to each network
card. It consists of the rst 3 bytes is the vendor code
(manufacture ID) and 6 bytes user code. Ethernet sends
and receives frames based on this address.
Native mode
One of the operation mode of Active Directory on
Windows 2000Server/Server 2003.
NTP (Network Time Protocol)
The protocol to correct time via the network. It
periodically synchronize the time with that of NTP
server and correct the time.
Oine Files
This feature allows your PC to access les on the
TeraStation as if it is online when your PC is oine, by
using the oine le function equipped with Windows
2000 or later (except Windows XP Home Edition). When
it is online, updated les will be synchronized and
saved.
PDC (Primary Domain Controller)
The server to administer the logon verication and the
user or security on the Microsoft Network domain user.
Port Trunking
The feature uses multiple cable and it can continue to
transmission by using another line even if one of the