{"id":56966,"date":"2021-03-12T14:47:58","date_gmt":"2021-03-12T22:47:58","guid":{"rendered":"https:drivesaversdatarecovery.com\/\/?p=56966"},"modified":"2026-02-25T05:45:56","modified_gmt":"2026-02-25T13:45:56","slug":"what-are-the-raid-5-requirements","status":"publish","type":"post","link":"https:\/\/drivesaversdatarecovery.com\/sv-se\/blog\/what-are-the-raid-5-requirements\/","title":{"rendered":"Vilka \u00e4r kraven f\u00f6r RAID 5?"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid wpex-relative\"><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><span style=\"font-weight: 400;\">Vad g\u00f6r du om du \u00e4r ett litet till medelstort f\u00f6retag \u2013 eller till och med en frilansare eller konsult \u2013 och inte har r\u00e5d att investera i servrar med h\u00f6g kapacitet? Du beh\u00f6ver \u00e4nd\u00e5 enheter med snabba l\u00e4s- och skrivhastigheter och mycket lagringsutrymme, men kostnaden \u00e4r f\u00f6r h\u00f6g! Beroende p\u00e5 dina behov kan RAID 5 vara svaret. Men vilka \u00e4r kraven f\u00f6r RAID 5?<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Vad \u00e4r RAID?<\/span><\/h2>\n<p class=\"translation-block\"><span style=\"font-weight: 400\">Lagringsl\u00f6sningar med Redundant Array of Independent Disks (RAID) \u00e4r ett utm\u00e4rkt s\u00e4tt att maximera prestandan hos flera h\u00e5rddiskar. <\/span><a href=\"https:\/\/drivesaversdatarecovery.com\/sv-se\/raid-comparison\/\" target=\"_self\"><span style=\"font-weight: 400\">Som vi tidigare har n\u00e4mnt<\/span><\/a><span style=\"font-weight: 400\">, anv\u00e4nder RAID-konfigurationer kraften i b\u00e5de mjukvara <\/span><i><span style=\"font-weight: 400\">och<\/span><\/i><span style=\"font-weight: 400\"> h\u00e5rdvara s\u00e5 att flera diskar kan arbeta tillsammans. Resultatet \u00e4r ett prisv\u00e4rt och h\u00f6gpresterande lagringssystem.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Olika typer av RAID-konfigurationer har sina egna f\u00f6rdelar, nackdelar och krav. Idag ska vi titta p\u00e5 RAID 5 eftersom det \u00e4r ett popul\u00e4rt och relativt enkelt alternativ att implementera. RAID 5 ger blixtsnabba l\u00e4shastigheter, och om en disk g\u00e5r s\u00f6nder \u00e4r det m\u00f6jligt att \u00e5terst\u00e4lla data. Det beror p\u00e5 att datan delas upp i sm\u00e5 delar som f\u00f6rdelas \u00f6ver de anslutna diskarna. Denna metod kallas f\u00f6r paritet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det finns s\u00e5klart n\u00e5gra saker du b\u00f6r k\u00e4nna till innan du organiserar dina h\u00e5rddiskar i en RAID 5-konfiguration. Varje typ av array har specifika krav f\u00f6r att fungera optimalt, och RAID 5 \u00e4r inget undantag. S\u00e5 vad beh\u00f6ver du veta innan du s\u00e4tter upp RAID 5?<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">De 4 RAID 5-kraven du b\u00f6r k\u00e4nna till<\/span><\/h2>\n<h3><span style=\"font-weight: 400;\">RAID 5-krav #1: R\u00e4tt antal diskar<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Hur m\u00e5nga fysiska diskar kr\u00e4vs f\u00f6r att implementera RAID 5? I en RAID 5-konfiguration kan du ansluta tre till sexton diskar, men fyra \u00e4r det vanligaste antalet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c4ven om det minsta antalet diskar f\u00f6r RAID 5 \u00e4r tre, v\u00e4ljer de flesta anv\u00e4ndare fyra diskar f\u00f6r att f\u00e5 b\u00e4ttre hastighet, feltolerans och lagringskapacitet. Det kan verka ologiskt, men ju fler diskar som \u00e4r anslutna till arrayen, desto l\u00e5ngsammare blir l\u00e4s- och skrivhastigheterna. Och ju fler diskar du l\u00e4gger till, desto mer komplicerad blir data\u00e5terst\u00e4llningen om en disk kraschar.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Samtidigt g\u00e4ller att ju f\u00e4rre diskar som \u00e4r anslutna till arrayen, desto mer lagringskapacitet f\u00f6rloras. Till exempel minskar tillg\u00e4nglig kapacitet med 33\u202f% om du anv\u00e4nder tre h\u00e5rddiskar. Om du kopplar tre 1\u202fTB-diskar (totalt 3\u202fTB) i en RAID 5-konfiguration f\u00e5r du bara 2\u202fTB anv\u00e4ndbar lagring.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det finns fortfarande lagringsf\u00f6rlust \u00e4ven om du anv\u00e4nder fler diskar \u00e4n minimikravet f\u00f6r RAID 5, men f\u00f6rlusten \u00e4r inte lika stor. RAID 5-konfigurationer f\u00f6rlorar alltid lagringskapaciteten motsvarande en av de anslutna diskarna, oavsett antal. Tricket \u00e4r att hitta balansen mellan lagringsbehov, prestandaf\u00f6rv\u00e4ntningar och risktolerans.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">RAID 5-krav #2: R\u00e4tt lagringskapacitet<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">En viktig del i att best\u00e4mma hur m\u00e5nga diskar som beh\u00f6vs i en RAID 5-konfiguration \u00e4r att ta h\u00e4nsyn till den totala lagringskapaciteten. I denna typ av array spelar det ingen roll om det \u00e4r tre eller sexton diskar anslutna \u2013 de m\u00e5ste alla ha samma lagringskapacitet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Varf\u00f6r? F\u00f6r att om de anslutna h\u00e5rddiskarna inte har identisk kapacitet, kommer de att fungera som om de alla har kapaciteten hos den minsta disken. Att sl\u00f6sa med v\u00e4rdefull lagringskapacitet \u00e4r ett stort no-no och b\u00f6r undvikas till varje pris!<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">RAID 5-krav #3: En dedikerad h\u00e5rdvarukontroller<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Vissa RAID-konfigurationer f\u00f6rlitar sig p\u00e5 mjukvara f\u00f6r att hantera och underh\u00e5lla systemen. Andra anv\u00e4nder h\u00e5rdvarubaserade l\u00f6sningar f\u00f6r att s\u00e4kerst\u00e4lla att allt fungerar korrekt. F\u00f6r RAID 5 rekommenderas det starkt att anv\u00e4nda en dedikerad h\u00e5rdvarukontroller.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">RAID 5-h\u00e5rdvarukontroller \u00e4r fysiska chip som antingen integreras i moderkortet eller finns som frist\u00e5ende expansionskort. De \u00e4r anv\u00e4ndbara eftersom de kan ber\u00e4kna paritetsdata innan data skrivs till diskarna. Dessa kontroller hanterar varje disks fysiska utrymme och f\u00f6rb\u00e4ttrar systemets prestanda med hj\u00e4lp av extra diskcache.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">RAID 5-krav #4: Feltolerans<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Du b\u00f6r absolut t\u00e4nka p\u00e5 feltolerans innan du konfigurerar din RAID-upps\u00e4ttning. RAID 5 har faktiskt bra feltolerans eftersom systemet \u00e4r utformat f\u00f6r att forts\u00e4tta fungera \u00e4ven om en disk g\u00e5r s\u00f6nder. Och om du skulle f\u00f6rlora data kan den f\u00f6rlorade informationen \u00e5terskapas med hj\u00e4lp av data fr\u00e5n de andra diskarna genom paritet.<\/span><\/p>\n<p class=\"translation-block\"><span style=\"font-weight: 400\">Att f\u00f6rst\u00e5 detta krav f\u00f6r RAID\u202f5 \u00e4r avg\u00f6rande eftersom, till skillnad fr\u00e5n andra RAID-konfigurationer, kan ett RAID\u202f5-system endast tolerera f\u00f6rlust av en disk. Om flera diskar g\u00e5r s\u00f6nder samtidigt, \u00e4r chanserna till <a href=\"\/sv-se\/data-recovery-services\/devices-supported\/raid-nas-san\/raid-data-recovery\/\" target=\"_self\">data\u00e5terst\u00e4llning<\/a> mycket l\u00e4gre. \u00c5terst\u00e4llning blir dessutom mer komplicerad och tidskr\u00e4vande ju fler diskar som ing\u00e5r i arrayen.<\/span><\/p>\n<p class=\"translation-block\"><span style=\"font-weight: 400\">Att v\u00e4lja r\u00e4tt antal diskar f\u00f6r din RAID\u202f5-konfiguration \u00e4r viktigt eftersom antalet <\/span><i><span style=\"font-weight: 400\">direkt p\u00e5verkar <\/span><\/i><span style=\"font-weight: 400\">feltoleransen.<\/span><\/p>\n<p class=\"translation-block\"><span style=\"font-weight: 400\">Om du har ett trasigt RAID\u202f5 eller problem med n\u00e5gon annan RAID-konfiguration, kan vi hj\u00e4lpa dig avg\u00f6ra om dina data \u00e4r m\u00f6jliga att r\u00e4dda. <\/span><a href=\"\/sv-se\/\" target=\"_self\"><span style=\"font-weight: 400\">Om din RAID-matris havererar, kontakta DriveSavers omedelbart!<\/span><\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"What do you do if you\u2019re a small to medium-sized business\u2014or even a freelancer or consultant\u2014 who can\u2019t afford the capital investment to buy high-capacity servers? You still need your drives to deliver fast read and write speeds with ample storage space, but the cost is so prohibitive! Depending on your needs, the answer might&hellip;","protected":false},"author":25,"featured_media":60243,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[264],"tags":[314],"post_series":[],"class_list":["post-56966","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-raid","entry","has-media"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>What are the RAID 5 Requirements?<\/title>\n<meta name=\"description\" content=\"A RAID array is a great way to maximize several hard drives\u2019 performance and storage. 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