Josh References Glossary R

See Redundant Array of Independent Disks (RAID).

Rapid Deployment Services (RDS)
A service offered by TPS to help bring a TME installation quickly online.

See Reverse Address Resolution Protocol (RARP).

See Rapid Deployment Services (RDS).

A set of hosts that share the same Kerberos database.

record types
See DNS record types.

See infinite loop.

Redundant Array of Independent Disks (RAID)
A set of multiple disks that exchange data in such a way as to permit the failure of at least one without losing any data. There are multiple levels of RAID, including:
0 Striping, where data is simply striped across multiple disks to make one larger logical file system; no parity information is used; one dead disk takes out the whole array
1 Mirroring, where one disk is duplicated onto another disk; if either disk fails, the other disk has all the data (no data is lost)
2 Parity (proprietary), special case. Patented by Thinking Machines, Inc. Hamming code disk array which consists of data drives and multiple parity drives.
3 Striping with parity, where one disk in an n-way stripe is reserved for parity information (also known as byte striping)
4 Striping with parity, where one disk in an n-way stripe is reserved for parity information, using a variable striping unit size (also known as segment striping)
5 Striping with parity, where information (including both data and parity) is striped across all disks in an n-way stripe
S Striping with parity (proprietary), where information (including both data and parity) is striped across all disks in an n-way stripe; proprietary to EMC Corp. (no longer in use)
6 Segment striping with multiple parity, an improvement on RAID 5 by having multiple parity drives, allowing for multiple disk failures with no data loss
7 Striping with parity (proprietary), a method patented by Storage Computer Corp. where data is striped across multiple drives with one or more parity drives (an unofficial RAID level)

The act of adding a record to the Domain Name System (DNS) for a given domain.

Remote Monitoring (RMON)
A network monitoring protocol defined in RFC 2074.

Remote Procedure Call (RPC)
The remote procedure call structure developed by Sun for communication between clients and servers. See RFC 1050, RFC 1057, and RFC 1831 for more.

See state database.

An event; that is, something that occurs at a particular time, causing a service to be performed.

request alias
An alias for list requests (typically subscription and resignation requests) that points to the owner alias in a group alias triplet. See group alias.

Request For Comments (RFC)
A document published on the Internet involving one or more Internet-related technical topic, such as the formats of message headers in mail (SMTP, MIME) or news. An index is available and authors' instructions are on the IETF web site.

The DNS client; provides a programming interface, utilities, and libraries.

Items corresponding to the systems, devices, services, and facilities in a distributed system.

The process of taking data saved to tape and putting it back onto disk. See also backup.

Reverse Address Resolution Protocol (RARP)
A protocol (RFC 903) that defines how a computer can obtain its IP address from its MAC address.

reverse lookup
Looking up a DNS name from its address, generally by translating the IP address a.b.c.d into reverse order ( See also lookup.

Discard all changes and return to the last-saved version.

See Request For Comments (RFC).

Rich Text Format (RTF)
A method of encoding ASCII text to allow formatting such as italics and boldface, as well as font, style, and color information. Used as a standard means of transferring information between different vendors' word processor applications.

See Routing Information Protocol (RIP).

See Remote Monitoring (RMON).

The authorization granted to a principal for access to a resource, object or method; the access privileges of an administrator; the name assigned to a level of clearance.

Move a tape into or out of service; exchange tapes.

Network hardware that routes or redirects packets to their destination host or hosts.

Routing Information Protocol (RIP)
A UDP protocol (RFC 1058) that propagates routing information throughout an internetwork, so that each router (or gateway) knows where the next hop is for any destination. Updated in RFC 2453.

RP record
See DNS record types, RP record.

See Remote Procedure Call (RPC).

See Rich Text Format (RTF).

Short for Kindly Consult the Documentation.