{"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\/fi\/blog\/what-are-the-raid-5-requirements\/","title":{"rendered":"Mitk\u00e4 ovat RAID 5 -j\u00e4rjestelm\u00e4n vaatimukset?"},"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;\">Mit\u00e4 teet, jos olet pieni tai keskisuuri yritys \u2013 tai jopa freelanceri tai konsultti \u2013 eik\u00e4 sinulla ole varaa investoida suurikapasiteettisiin palvelimiin? Tarvitset silti levyj\u00e4, jotka tarjoavat nopeat luku- ja kirjoitusnopeudet sek\u00e4 runsaasti tallennustilaa, mutta kustannukset ovat liian suuret! Tarpeidesi mukaan vastaus voi olla RAID 5. Mutta mitk\u00e4 ovat RAID 5 -j\u00e4rjestelm\u00e4n vaatimukset?<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Mik\u00e4 on RAID?<\/span><\/h2>\n<p class=\"translation-block\"><span style=\"font-weight: 400\">Tallennusratkaisut, jotka hy\u00f6dynt\u00e4v\u00e4t RAID-teknologiaa (Redundant Array of Independent Disks), ovat erinomainen tapa maksimoida useiden kiintolevyjen suorituskyky. <\/span><a href=\"https:\/\/drivesaversdatarecovery.com\/fi\/raid-comparison\/\" target=\"_self\"><span style=\"font-weight: 400\">Kuten olemme aiemmin k\u00e4sitelleet<\/span><\/a><span style=\"font-weight: 400\">, RAID-kokoonpanot hy\u00f6dynt\u00e4v\u00e4t ohjelmistoa <\/span><i><span style=\"font-weight: 400\">ja<\/span><\/i><span style=\"font-weight: 400\"> laitteistoa, jotta useat levyt voivat toimia yhdess\u00e4. Lopputuloksena on edullinen ja tehokas tietovarastointij\u00e4rjestelm\u00e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">RAID-kokoonpanoja on useita erilaisia, joilla kaikilla on omat etunsa, haittansa ja vaatimuksensa. T\u00e4n\u00e4\u00e4n tarkastelemme RAID 5 -kokoonpanoa, koska se on suosittu ja suhteellisen helppo ottaa k\u00e4ytt\u00f6\u00f6n. RAID 5 tarjoaa salamannopeita lukunopeuksia, ja jos yksi levy ep\u00e4onnistuu, tietojen palautus on mahdollista. T\u00e4m\u00e4 johtuu siit\u00e4, ett\u00e4 tiedot jaetaan pieniksi osiksi ja levitet\u00e4\u00e4n liitettyjen levyjen kesken. T\u00e4t\u00e4 tapaa kutsutaan pariteetiksi.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Totta kai, ennen kuin j\u00e4rjest\u00e4t kiintolevyt RAID 5 -kokoonpanoon, on hyv\u00e4 tiet\u00e4\u00e4 muutama asia. Jokaisella j\u00e4rjestelm\u00e4ll\u00e4 on omat vaatimuksensa toimiakseen kunnolla, eik\u00e4 RAID 5 ole poikkeus. Mit\u00e4 siis tulisi tiet\u00e4\u00e4 ennen RAID 5 -levykokoonpanon asentamista?<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">4 RAID 5 -vaatimusta, jotka sinun tulisi tiet\u00e4\u00e4<\/span><\/h2>\n<h3><span style=\"font-weight: 400;\">RAID 5 -vaatimus #1: Oikea m\u00e4\u00e4r\u00e4 levyj\u00e4<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Kuinka monta fyysist\u00e4 levy\u00e4 tarvitaan RAID 5:n toteuttamiseen? RAID 5 -kokoonpanossa voi olla kolmesta kuuteentoista levy\u00e4, mutta yleisin m\u00e4\u00e4r\u00e4 on nelj\u00e4 kovalevy\u00e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Vaikka RAID 5 -j\u00e4rjestelm\u00e4ss\u00e4 tarvitaan v\u00e4hint\u00e4\u00e4n kolme levy\u00e4, useimmat k\u00e4ytt\u00e4j\u00e4t valitsevat nelj\u00e4 levy\u00e4 suorituskyvyn, vikasietokyvyn ja tallennuskapasiteetin vuoksi. Se saattaa kuulostaa ep\u00e4loogiselta, mutta mit\u00e4 enemm\u00e4n levyj\u00e4 kytket kokoonpanoon, sit\u00e4 hitaammaksi lukemis- ja kirjoitusnopeudet k\u00e4yv\u00e4t. Lis\u00e4ksi mit\u00e4 enemm\u00e4n levyj\u00e4, sit\u00e4 monimutkaisempaa tietojen palauttaminen on levyn vikaantuessa.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Samaan aikaan mit\u00e4 v\u00e4hemm\u00e4n levyj\u00e4 on liitetty kokoonpanoon, sit\u00e4 enemm\u00e4n tallennuskapasiteettia menetet\u00e4\u00e4n. Esimerkiksi kolmella kovalevyll\u00e4 k\u00e4ytett\u00e4viss\u00e4 oleva kapasiteetti v\u00e4henee 33\u202f%. Jos siis liit\u00e4t kolme 1\u202fTB levy\u00e4 (yhteens\u00e4 3\u202fTB) RAID 5 -kokoonpanoon, sinulle j\u00e4\u00e4 vain 2\u202fTB k\u00e4ytett\u00e4v\u00e4\u00e4 tallennustilaa.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tallennuskapasiteettia menetet\u00e4\u00e4n edelleen, vaikka k\u00e4ytt\u00e4isit enemm\u00e4n levyj\u00e4 kuin RAID 5:n minimivaatimus, mutta menetys ei ole yht\u00e4 merkitt\u00e4v\u00e4. RAID 5 -kokoonpanossa menetet\u00e4\u00e4n aina yhden levyn tallennuskapasiteetti riippumatta siit\u00e4, kuinka monta levy\u00e4 on liitetty. Temppu on l\u00f6yt\u00e4\u00e4 tasapaino tallennustarpeiden, suorituskykyodotusten ja riskinsietokyvyn v\u00e4lill\u00e4.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">RAID 5 -vaatimus #2: Oikea tallennuskapasiteetti<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Yksi keskeinen osa RAID 5 -kokoonpanon levyjen lukum\u00e4\u00e4r\u00e4n m\u00e4\u00e4ritt\u00e4mist\u00e4 on kokonaiskapasiteetin huomioiminen. T\u00e4ss\u00e4 kokoonpanossa ei ole v\u00e4li\u00e4, onko liitetty kolme vai kuusitoista levy\u00e4 \u2013 kaikkien t\u00e4ytyy olla saman kapasiteetin levyj\u00e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Miksi? Koska jos liitetyill\u00e4 kovalevyill\u00e4 ei ole samaa kapasiteettia, ne toimivat kuin niill\u00e4 olisi vain pienimm\u00e4n levyn tila. Arvokkaan tallennustilan tuhlaaminen on iso ei\u2013ei, ja se on v\u00e4ltt\u00e4m\u00e4tt\u00e4 v\u00e4ltett\u00e4v\u00e4!<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">RAID 5 -vaatimus #3: Erillinen laiteohjain<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Jotkin RAID-kokoonpanot luottavat ohjelmistopohjaisiin ratkaisuihin j\u00e4rjestelm\u00e4n hallinnassa ja yll\u00e4pidossa. Toiset k\u00e4ytt\u00e4v\u00e4t laitteistopohjaisia ratkaisuja varmistaakseen luotettavan toiminnan. RAID 5 -kokoonpanossa laiteohjaimen k\u00e4ytt\u00f6\u00e4 suositellaan vahvasti.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">RAID 5 -laitteisto-ohjaimet ovat fyysisi\u00e4 siruja, jotka lis\u00e4t\u00e4\u00e4n emolevylle tai erillisin\u00e4 laajennuskortteina. Ne ovat hy\u00f6dyllisi\u00e4, koska ne voivat laskea pariteettitiedot ennen kuin tiedot kirjoitetaan kaikille levyille. Ohjaimet hallitsevat jokaisen levyn fyysist\u00e4 tilaa ja parantavat kokoonpanon suorituskyky\u00e4 tarjoamalla lis\u00e4levyv\u00e4limuistin.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">RAID 5 -vaatimus #4: Vikasietoisuus<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Vikasietoisuus kannattaa ehdottomasti ottaa huomioon ennen RAID-kokoonpanon m\u00e4\u00e4ritt\u00e4mist\u00e4. RAID 5 tarjoaa melko hyv\u00e4n vikasietokyvyn, koska j\u00e4rjestelm\u00e4 on suunniteltu toimimaan, vaikka yksi levy menisi ep\u00e4kuntoon. Jos tietoja katoaa, ne voidaan palauttaa muiden levyjen pariteettitiedon avulla.<\/span><\/p>\n<p class=\"translation-block\"><span style=\"font-weight: 400\">T\u00e4m\u00e4n RAID\u202f5:n vaatimuksen ymm\u00e4rt\u00e4minen on ratkaisevan t\u00e4rke\u00e4\u00e4, sill\u00e4 toisin kuin muissa RAID\u2011kokoonpanoissa, RAID\u202f5 -j\u00e4rjestelm\u00e4 kest\u00e4\u00e4 vain yhden levyn hajoamisen. Jos useampi levy hajoaa samanaikaisesti, <a href=\"\/fi\/data-recovery-services\/devices-supported\/raid-nas-san\/raid-data-recovery\/\" target=\"_self\">tietojen palautuksen<\/a> todenn\u00e4k\u00f6isyys pienenee huomattavasti. Lis\u00e4ksi palautusprosessi monimutkaistuu ja pitenee jokaisen lis\u00e4levyn my\u00f6t\u00e4.<\/span><\/p>\n<p class=\"translation-block\"><span style=\"font-weight: 400\">Oikean levyjen m\u00e4\u00e4r\u00e4n valinta RAID\u202f5-kokoonpanoon on eritt\u00e4in t\u00e4rke\u00e4\u00e4, sill\u00e4 levyjen m\u00e4\u00e4r\u00e4 <\/span><i><span style=\"font-weight: 400\">vaikuttaa suoraan <\/span><\/i><span style=\"font-weight: 400\">vikasietoisuuteen.<\/span><\/p>\n<p class=\"translation-block\"><span style=\"font-weight: 400\">Jos kohtaat RAID\u202f5 -vioituksen tai ongelmia jonkin muun RAID\u2011kokoonpanon kanssa, voimme auttaa arvioimaan, ovatko tietosi palautettavissa. <\/span><a href=\"\/fi\/\" target=\"_self\"><span style=\"font-weight: 400\">Jos RAID\u2011array menee rikki, ota heti yhteytt\u00e4 DriveSaversiin!<\/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,"om_disable_all_campaigns":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 v27.5) - 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. But there are specific conditions for each RAID type. 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