{"id":2220,"date":"2021-02-24T13:49:30","date_gmt":"2021-02-24T13:49:30","guid":{"rendered":"http:\/\/172.19.41.139\/hr\/?page_id=2220"},"modified":"2021-09-27T12:57:58","modified_gmt":"2021-09-27T10:57:58","slug":"virtualizacija","status":"publish","type":"page","link":"https:\/\/www.bccservices.com\/hr\/infrastrukturna-rjesenja\/portfolio\/virtualizacija\/","title":{"rendered":"Virtualizacija"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy\"><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:9px;margin-bottom:9px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-text fusion-text-1\"><p>Virtualizacija je \u010din izolacije ili odvajanja jednog ra\u010dunalnog resursa od drugih. Ili \u2013 drugim rije\u010dima &#8211; proces razdvajanja slojeva IT funkcija tako da konfiguracije slojeva postaju neovisne jedna od druge. Kao rezultat toga, virtualizacija maskira specifi\u010dnu prirodu IT resursa od korisnika.<\/p>\n<p>Mo\u017eemo re\u0107i da je kod virutalizacije, fizi\u010dka razina odvojena od logi\u010dke razine, to se drugim rije\u010dima zove apstrakcija (izdvajanje) fizi\u010dkog od logi\u010dkog sloja (operativni sustav, aplikacijska razina i podaci se odvajaju od fizi\u010dke razine). Sustav sada mo\u017ee rezervirati elemente to\u010dno prema potrebama okoline, istovremeno smanjuju\u0107i tro\u0161kove implementacije, zadovoljavaju\u0107i ekolo\u0161ke standarde (tzv. Green IT) te uspostavljaju\u0107i fleksibilnu radnu okolinu, gdje se hardverski resursi prema potrebi dijele izme\u0111u razli\u010ditih virtualnih okru\u017eenja koja na sustavu postoje.<\/p>\n<\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:9px;margin-bottom:9px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-image-element fusion-image-align-center in-legacy-container\" style=\"text-align:center;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><div class=\"imageframe-align-center\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img loading=\"lazy\" decoding=\"async\" width=\"638\" height=\"281\" alt=\"VMs\" title=\"VMs\" src=\"http:\/\/172.19.41.139\/hr\/wp-content\/uploads\/2021\/03\/VMs.png\" class=\"img-responsive wp-image-2486\" srcset=\"https:\/\/www.bccservices.com\/hr\/wp-content\/uploads\/2021\/03\/VMs-200x88.png 200w, https:\/\/www.bccservices.com\/hr\/wp-content\/uploads\/2021\/03\/VMs-400x176.png 400w, https:\/\/www.bccservices.com\/hr\/wp-content\/uploads\/2021\/03\/VMs-600x264.png 600w, https:\/\/www.bccservices.com\/hr\/wp-content\/uploads\/2021\/03\/VMs.png 638w\" sizes=\"(max-width: 960px) 100vw, 638px\" \/><\/span><\/div><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:9px;margin-bottom:9px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-text fusion-text-2\"><h4>Svako virtualno okru\u017eenje zahtijeva pomnu selekciju hardverskih komponenti poslu\u017eitelja, mre\u017enih komponenti i diskovnog sustava prije same faze dizajna i implementacije, a da je tome tako dokazuju sljede\u0107e \u010dinjenice:<\/h4>\n<ul>\n<li>Svi operativni sustavi, baze, aplikacije i servisi u virtualnom okru\u017eenju pohranjeni su na diskovnom sustavu<\/li>\n<li>Kako se radi o velikom broju virtualnih sustava na jednom diskovnom sustavu klju\u010dan je faktor mogu\u0107nost ekspanzije zbog potreba performansi ili kapaciteta, bez administrativnih zahvata koji zahtijevaju ga\u0161enje produkcije<\/li>\n<li>Za potrebe pove\u0107anja sigurnosti, ponu\u0111eni sustav potrebno je replicirati u svrhu redundancije na nivou objekta ili lokacije, a bez utjecanja na performanse sustava i bez ga\u0161enja produkcije prilikom konfiguracije replikacije<\/li>\n<li>Velika konsolidacija s mnogo operativnih sustava na jednom diskovnom sustavu mora imati ispunjene najvi\u0161e mogu\u0107e standarde po pitanju redundancije diskovnog RAID polja<\/li>\n<li>Zbog nepredvidivog rasta broja korisnika i budu\u0107eg sustava, servisa i aplikacija, sustav mora imati mogu\u0107nost nadogradnje on-line i bez ve\u0107ih administrativnih zahvata<\/li>\n<\/ul>\n<p>Virtualizacija je jedna od tehnologija koja je temelj razvoja rje\u0161enja u oblaku,\u00a0 time \u0161to infrastrukturu \u010dini dostupnom i jednostavnom za kori\u0161tenje i upravljanje. Prednosti kori\u0161tenja virtualizacije su: pristup na zahtjev poslu\u017eiteljima i resursima za pohranu, u\u0161teda energije, smanjenje potrebnog prostora, racionalno kori\u0161tenje ljudskih resursa, smanjenje kapitalnih i operativnih tro\u0161kova, uskla\u0111ivanje, premje\u0161tanje i raspodjela optere\u0107enja i izolacija. Uskla\u0111ivanje vi\u0161e pojedina\u010dnih i heterogenih optere\u0107enja na jednoj fizi\u010dkoj platformi omogu\u0107uje bolju iskoristivost sustava. Premje\u0161tanje radnog optere\u0107enja pru\u017ea podr\u0161ku sklopovlju, balansira optere\u0107enje i omogu\u0107ava oporavak od katastrofe.<\/p>\n<\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:9px;margin-bottom:9px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":1342,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2220","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Virtualizacija - BCC Services<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.bccservices.com\/hr\/infrastrukturna-rjesenja\/portfolio\/virtualizacija\/\" \/>\r\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Virtualizacija - 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