KwamfutocinKayan aiki

Kuma ka san abin da hari-dāgar yaƙi?

A AMINCI data ajiya - shi ne daya daga cikin mafi muhimmanci da kuma Topical al'amurran da suka shafi a kan kwamfuta tsarin. Saboda haka, da yawa qoqarinsu da kuma bincike da aka mayar da hankali a cikin wannan shugabanci, kuma a sakamakon akwai wani fasaha na yi wa hari-iri-iri, wanda, duk da cewa shi aka ƙirƙira a 'yan shekaru da suka wuce ne quite dacewa da kuma a bukatar a iyakancen lokaci.

Bari mu yi kokarin gane abin da irin fasaha. Da farko, bari ta ayyana babban ambatacce. Saboda haka, hari-tsararru - yana da irin m sa na m woje cewa ana amfani da su bunkasa resiliency da kuma tasiri na kwamfuta tsarin. A farko da aka samu saboda redundancy, da kuma na biyu - saboda lokaci daya aiki na tafiyarwa, wanda aka halitta a cikin tsararru. Ya kamata a lura da cewa hari-tsararru tsarin da ake amfani da matsayin guda faifai da hulda da software da kuma hardware.

Don amsa wannan tambaya na yadda za ka ƙirƙiri wani hari-tsararru, dole ne a ambata cewa akwai da dama daban-daban bambancin (matakan), da aiwatar da abin da ya dogara a kan kungiyar na da fayafai. A] aukacin aiki na tafiyarwa za a iya shirya tare da ko dai wani layi daya ko m damar. A farkon harka, da bayanai rikodi faifai sarari ne zuwa kashi tube (raka'a), wanda sa'an nan fada a kan daban-daban jiki woje (yi inganta ta lokaci daya rikodi tube). Lokacin da karanta bayanai kamar yadda duk ake gudanar ne tubalan, wanda na taimaka wa kara ƙara da yadda ya dace da irin wannan tsarin. Bugu da ƙari, cikin mafi tafiyarwa, wasan kwaikwayon zai kasance hari-tsararru. Amma akwai nuances. Ba shi yiwuwa a shirya irin wannan tsarin, idan block size ne ya fi girma fiye da girman da write bukatar bayani.

A cikin hali na mai zaman kanta raba damar dukkan bayanai rubuta mai amfani request a cikin wannan hanya kamar yadda a cikin aiki tare da guda ma'ana faifai, amma sabanin karshen halin da ake ciki, a lokacin da karanta aiki riga da za a yi a daban-daban (na daban) woje.

A wannan lokaci, a lokacin akwai da dama misali hanyoyi na shirya (matakan) na wani tsarin kamar hari-tsararru. Suna ƙidaya daga 0 zuwa 6, kuma ake magana a kai, da bi, hari 0, hari 1, da sauransu. A aikace, mafi sau da yawa amfani da irin wannan matakan: 0, 1, 3, da kuma 5.

Saboda haka, domin kusan aiwatar da waje hari-gungu-gungu, dole ne ka yi biyu aka gyara: hari-kula, ya yi aikin ayyuka na rarraba shigowa bayanai, sadarwa da master uwar garke, da samar da m bayanai, da kuma wani sashi na wuya tafiyarwa. Wannan ne da aka sani a matsayin mai hardware zaɓi don ƙirƙirar hari-tsararru. Amma wannan ba shine kawai hanyar da na shirya woje. Yi irin wannan tsarin ne zai yiwu saboda abin da ake kira software yanayi. A wannan embodiment, da hari ne da za'ayi amfani da musamman kayan aikin da ake da goyan bayan daya ko wani tsarin aiki. A hasara irin wannan aiwatar shi ne cewa failover software PC aka rasa, duk bayanai da aka adana a kan ma'ana hari-woje. Bugu da kari, dole ne mu tuna cewa software za ka iya gina wani tsararru na farko ne kawai da sifili matakin.

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