Western Digital WDBLGT0040KBK Administrator's Manual page 71

Small office storage server

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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.

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