a set of failures
31State machine replication — Introduction from Schneider s 1990 survey: : Distributed software is often structured in terms of clients and services. Each service comprises one or more servers and exports operations that clients invoke by making requests. Although using a… …
32Standard RAID levels — The standard RAID levels are a basic set of RAID configurations and employ striping, mirroring, or parity.The standard RAID levels can be nested for other benefits ( see Nested RAID levels ). Concatenation (SPAN) The controller treats each drive… …
33List of pipeline accidents — The following is a list of pipeline accidents: This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. Contents 1 Bel …
34Virtual synchrony — is an interprocess messaging passing (sometimes called event queue management) technology. Virtual synchrony systems allow programs running in a network to organize themselves into process groups , and to send messages to groups (as opposed to… …
35Italy — /it l ee/, n. a republic in S Europe, comprising a peninsula S of the Alps, and Sicily, Sardinia, Elba, and other smaller islands: a kingdom 1870 1946. 57,534,088; 116,294 sq. mi. (301,200 sq. km). Cap.: Rome. Italian, Italia. * * * Italy… …
36Famine — This article is about scarcity of food. For other uses, see Famine (disambiguation). Child victim of the Holodomor. A famine is a widespread scarcity of food. This phenomenon is usually accompanied or followed by regional malnutrition, starvation …
37Telephone exchange — A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central… …
38Nested RAID levels — Levels of nested RAID,[1] also known as hybrid RAID,[2] combine two or more of the standard levels of RAID (redundant array of independent disks) to gain performance, additional redundancy, or both. Contents 1 Nesting 2 RAID 0+1 …
39Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
40ancient Greek civilization — ▪ historical region, Eurasia Introduction the period following Mycenaean civilization, which ended in about 1200 BC, to the death of Alexander the Great, in 323 BC. It was a period of political, philosophical, artistic, and scientific… …
