{"id":23,"date":"2012-11-29T20:50:34","date_gmt":"2012-11-29T19:50:34","guid":{"rendered":"http:\/\/darko-keric.from.hr\/?p=23"},"modified":"2012-12-03T08:52:59","modified_gmt":"2012-12-03T07:52:59","slug":"razlike-izmedu-scsi-ata-sas-i-sata","status":"publish","type":"post","link":"http:\/\/darko-keric.from.hr\/?p=23","title":{"rendered":"Razlike izme\u0111u SCSI, ATA, SAS i SATA"},"content":{"rendered":"<div>Tijekom godina najpro\u0161irenije su\u010delje je bilo Paralel ATA. Da bi ne dugo zatim nakon pojave interneta i potra\u017enje za ve\u0107im bandwithom PATA i SCSI standardi postali ne dovoljno u\u010dinkoviti u pogledu brzine i felksibilnosti. Paralelno su\u010delje je omogu\u0107ivalo paralelan prijenos podataka tj. slalo je vi\u0161e bitova istovremeno. Skoro sva osobna ra\u010dunala dolaze sa barem jednim paralelni su\u010deljem na koje se mogu spojit HDD, CDROM te sli\u010dni ure\u0111aji.<br \/>\n<strong>SCSI &#8211; small computer system interface<\/strong><br \/>\nje standard za paralelno su\u010delje koji korsite Apple ra\u010dunala, PC i drugi Unix sistemi za priklju\u010divanje preiferija kao \u0161to su diskovi i printeri na ra\u010dunalo. SCSI pru\u017ea prijenos podatka brzinom od 80 MB \/ s. Nadalje na jedan SCSI port se mo\u017ee priklju\u010ditit vi\u0161e ure\u0111aja, tako da SCSI mo\u017eemo promatrati kao I\/O sabirnicu umjesto obi\u010dnog su\u010delja.<br \/>\n<strong>ATA &#8211; jo\u0161 poznat kao IDE<\/strong><br \/>\nje disk implementacija koja ima integriran kontroler na samom disku. ATA se koristi za povezivanje tvrdih diskova, CD-ROM pogona i sli\u010dnih ure\u0111aja, te podr\u017eava 8\/16-bit su\u010delje koje podr\u017eava transfer do 8.3MB \/ s za ATA-2 i do 100MB \/ s ATA-6 Standardom.<br \/>\nDakle, kakve veze paralelno su\u010delje ima s SAS (Serial Attached SCSI ) i SATA (Serial ATA)?<br \/>\nPa ima puno, zato \u0161to se zbog limitacija u arhikteturi paralelnih su\u010delja stvorila potreba za razvijanje serijske tehnologije poput SAS i SATA.\u00a0 Nasuprot paralelnog toka podataka, podaci se prenose serijski, tako \u0161to se u jednom prijenosu vi\u0161e bitova zamota u pakete te se tako prenose, to im omogu\u0107uje ve\u0107u brzinu prijenos od paralelne tehnologije.<br \/>\n<strong>Serial Attached SCSI (SAS)<\/strong><br \/>\nSAS ili serijski priklju\u010den SCSI je nasljednik pralelno priklju\u010denog SCSI koji je point-to-point vezan sa serijskim perifernim su\u010deljem u kojem su kontroleri povezani direktno s diskovima. SAS je napredniji od obi\u010dnog SCSI zato \u0161to omog\u0107ava istovremeno spajanje vi\u0161e ure\u0111aja (do 128) razli\u010ditog tipa i veli\u010dina sa tanjim i du\u017eim kablovima. Komunicira pomo\u0107u full-duplex signala te podr\u017eava prijenos podatka od 3.0 GB \/ s. I jos k tome SAS diskovi mogu biti hot-plugged<\/div>\n<div><strong>Serial ATA (SATA)<\/strong><br \/>\nJo\u0161 poznat kao SATA je nasljednik paralelnog ATA diskovnog su\u010delja. SATA je povezan serijskom vezom \u2013 jedan kabal s najmanje \u010detiri \u017eice za uspostavljanje point-to-point veze izme\u0111u ure\u0111aja. Brzina prijenosa za SATA diskove po\u010dinje od 150 MB\/s.<br \/>\nSATA pro\u0161iruje mogu\u0107nosti ATA su\u010delja i nudi po\u010detnu brzinu prijenosa od 150 MB \/ s i nakon godina razvoja, postaje mainstream za diskovna su\u0161elja. Dok je na drugu stranu nasljednik SCSI su\u010delja SAS koji posti\u017ee brzine od 3 GB \/ s.<br \/>\nSAS ureda\u0111ji mogu komunicirat sa SATA i SCSI ure\u0111ajima (utori na SAS ure\u0111ajima su identi\u010dni onima na SATA ure\u0111ajima). Klju\u010dna razlika izmedu SCSI i SAS ure\u0111aja je ta \u0161to SAS ima dva priklju\u010dka za prijenos podataka, sto pove\u010dava sigurnost. Jer ako jedan priklju\u010dak zaka\u017ee jo\u0161 uvijek postoji komunikacija na drugom priklju\u010dku.<\/div>\n<div><\/div>\n<div>thx to Maki (Bug forum)<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Tijekom godina najpro\u0161irenije su\u010delje je bilo Paralel ATA. Da bi ne dugo zatim nakon pojave interneta i potra\u017enje za ve\u0107im bandwithom PATA i SCSI standardi postali ne dovoljno u\u010dinkoviti u pogledu brzine i felksibilnosti. Paralelno su\u010delje je omogu\u0107ivalo paralelan prijenos &hellip; <a href=\"http:\/\/darko-keric.from.hr\/?p=23\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":348,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[4],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/darko-keric.from.hr\/?p=23\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Razlike izme\u0111u SCSI, ATA, SAS i SATA - Sistemski in\u017eenjer\" \/>\n<meta property=\"og:description\" content=\"Tijekom godina najpro\u0161irenije su\u010delje je bilo Paralel ATA. 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