Western Digital WDBLGT0080KBK User Manual - Page 71

RAID 1, Share, Streaming Media, Striping, TCP/IP

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GLOSSARY RAID-Redundant Array of Independent Disks. A grouping of hard drives in a single system to provide greater performance and data integrity. RAID 0- RAID protocol in which data is striped across multiple hard drives, enabling the accelerated reading and recording of data by combining the work of two or more drives to increase performance. See also Striping. RAID 1- RAID protocol in which two copies of the data are instantaneously recorded: each on separate hard drives. RAID 1 ensures the protection of users' data because in the event that one of the hard drives fails, the other hard drive(s) willcontinue to read and write data until the faulty hard drive is replaced and rebuilt toonce again safely mirror the data. See also Mirroring. RAID 5- For systems with three or more drives, RAID 5 offers fast performance by striping data across all drives. It protects data by dedicating a quarter of each drive to fault tolerance, leaving three quarters of the system capacity available for data storage. RAID 10- RAID protocol that requires a minimum of four drives to implement. Adds redundancy and fault tolerance, providing data striping on top of disk mirroring. RAM-Random Access Memory. Memory that allows any storage location to be accessed randomly, as opposed to sequential access devices such as tape drives. ROM-Read-Only Memory. An integrated circuit memory chip containing programs and data that the computer or host can read but cannot modify. A computer can read instructions from ROM but cannot store data in ROM. Share-An area, similar to a folder or directory, set up to organize files and access them on your network. Shares can be Public, shared with everyone on your network, or Private, shared with only selected users on your network. SMB-Server Message Block. File-sharing protocol for Windows platform that allows users to access shares through My Network Places. Mac OS X or later also supports the CIFS protocol. See also Protocol. SMTP-Simple Mail Transfer Protocol. Standard for transferring email across the Internet. See also Protocol. Streaming Media-Media such as audio, video, and photos that are constantly received while being delivered by a streaming provider. Striping-The spread of data over multiple hard drives to improve performance. See also RAID 0. TCP/IP-Transmission Control Protocol/Internet Protocol. A set of protocols for communication over interconnected networks. The standard for data transmission over networks. See also Protocol. UPnP-Universal Plug n Play. A set of computer network protocols that simplify the implementation of networks in the home by allowing devices to connect seamlessly. See also Protocol. WAN-Wide Area Network. A computer network that crosses metropolitan, regional, or national boundaries. WD SENTINEL DX4000 67 ADMINISTRATOR'S GUIDE

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GLOSSARY
67
WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
RAID
—Redundant Array of Independent Disks. A grouping of hard drives in a single
system to provide greater performance and data integrity.
RAID
0
— RAID protocol in which data is striped across multiple hard drives,
enabling the accelerated reading and recording of data by combining the work of
two or more drives to increase performance. See also Striping.
RAID 1
— RAID protocol in which two copies of the data are instantaneously
recorded: each on separate hard drives. RAID 1 ensures the protection of users'
data because in the event that one of the hard drives fails, the other hard drive(s)
willcontinue to read and write data until the faulty hard drive is replaced and rebuilt
toonce again safely mirror the data. See also Mirroring.
RAID 5
— For systems with three or more drives, RAID 5 offers fast performance by
striping data across all drives. It protects data by dedicating a quarter of each drive
to fault tolerance, leaving three quarters of the system capacity available for data
storage.
RAID 10
— RAID protocol that requires a minimum of four drives to implement. Adds
redundancy and fault tolerance, providing data striping on top of disk mirroring.
RAM
—Random Access Memory. Memory that allows any storage location to be
accessed randomly, as opposed to sequential access devices such as tape drives.
ROM
—Read-Only Memory. An integrated circuit memory chip containing programs
and data that the computer or host can read but cannot modify. A computer can
read instructions from ROM but cannot store data in ROM.
Share
—An area, similar to a folder or directory, set up to organize files and access
them on your network. Shares can be Public, shared with everyone on your network,
or Private, shared with only selected users on your network.
SMB
—Server Message Block. File-sharing protocol for Windows platform that
allows users to access shares through My Network Places. Mac OS X or later also
supports the CIFS protocol. See also Protocol.
SMTP
—Simple Mail Transfer Protocol. Standard for transferring email across the
Internet. See also Protocol.
Streaming Media
—Media such as audio, video, and photos that are constantly
received while being delivered by a streaming provider.
Striping
—The spread of data over multiple hard drives to improve performance.
See also RAID 0.
TCP/IP
—Transmission Control Protocol/Internet Protocol. A set of protocols for
communication over interconnected networks. The standard for data transmission
over networks. See also Protocol.
UPnP
—Universal Plug n Play. A set of computer network protocols that simplify the
implementation of networks in the home by allowing devices to connect seamlessly.
See also Protocol.
WAN
—Wide Area Network. A computer network that crosses metropolitan,
regional, or national boundaries.