{"id":10887,"date":"2019-09-30T11:21:36","date_gmt":"2019-09-30T09:21:36","guid":{"rendered":"https:\/\/www.websupport.sk\/podpora\/?post_type=ht_kb&#038;p=10887"},"modified":"2021-04-16T15:22:15","modified_gmt":"2021-04-16T13:22:15","slug":"koncepty-a-terminologia-vdc","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.sk\/podpora\/kb\/koncepty-a-terminologia-vdc\/","title":{"rendered":"Koncepty a terminol\u00f3gia VDC"},"content":{"rendered":"\n<p>Z\u00e1kladn\u00e9 koncepty a stavebn\u00e9 bloky Virtu\u00e1lneho d\u00e1tov\u00e9ho centra (VDC). Slovensk\u00e9 n\u00e1zvy s\u00fa \u010falej pou\u017e\u00edvan\u00e9 v dokument\u00e1cii, anglick\u00e9 n\u00e1zvy s\u00fa uveden\u00e9 ako referencia ku Dashboard rozhraniu.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Availability zone, AZ<\/strong>\u00a0\u2013 Z\u00f3na, v ktorej s\u00fa zdroje v\u017edy dostupn\u00e9 alebo nedostupn\u00e9 ako skupina. Z\u00f3na zodpoved\u00e1 konkr\u00e9tnemu datacentru v konkr\u00e9tnom meste. Viacer\u00e9 z\u00f3ny umo\u017e\u0148uj\u00fa prisp\u00f4sobenie v\u00fdpo\u010dtov\u00fdch prostriedkov pod\u013ea geografick\u00fdch potrieb alebo rozlo\u017eenie rizika medzi viacer\u00e9 datacentr\u00e1.<\/li><li><strong>Compute server (Compute Node)<\/strong>\u00a0\u2013 Fyzick\u00fd server na ktorom s\u00fa spusten\u00e9 virtu\u00e1lne servery \u2013 in\u0161tancie.<\/li><li><strong>Firewall pravidl\u00e1 (Security Groups)<\/strong>\u00a0\u2013 Skupiny pravidiel ktor\u00e9 definuj\u00fa ak\u00e9 typy komunik\u00e1cie s\u00fa povolen\u00e9 z a do in\u0161tancie.<\/li><li><strong>Flavor<\/strong>\u00a0\u2013 Predpis prostriedkov, ktor\u00e9 spr\u00edstup\u0148ujeme in\u0161tancii. Flavor je zdru\u017een\u00e1 defin\u00edcia pre po\u010det procesorov, ve\u013ekos\u0165 RAM, ktor\u00e9 bude in\u0161tancia vyu\u017e\u00edva\u0165.<\/li><li><strong>In\u0161tancia (Instance)<\/strong>\u00a0\u2013 Samotn\u00fd virtu\u00e1lny server, ktor\u00fd sa sklad\u00e1 zo syst\u00e9mov\u00fdch zdrojov ako vCPU, RAM, IP a diskov\u00fd priestor.<\/li><li><strong>Obraz disku (Image)<\/strong>\u00a0\u2013 In\u0161tala\u010dn\u00e9 m\u00e9dium s operara\u010dn\u00fdm syst\u00e9mom. M\u00f4\u017ee ma\u0165 viacero form\u00e1tov \u2013 v\u00e4\u010d\u0161inou QCOW2, ktor\u00fd nepotrebuje manu\u00e1lnu in\u0161tal\u00e1ciu alebo naopak ISO ktor\u00e9 in\u0161tala\u010dn\u00fa proced\u00faru vy\u017eaduje. Obraz disku m\u00f4\u017eeme vytvori\u0165 viacer\u00fdmi sp\u00f4sobmi: stiahnut\u00edm z URL od poskytovate\u013ea, nahrat\u00edm lok\u00e1lneho s\u00faboru alebo vytvoren\u00edm snapshotu existuj\u00facej in\u0161tancie.<\/li><li><strong>Podsie\u0165 (Subnet)<\/strong>\u00a0\u2013 Anal\u00f3gia L3 sie\u0165ov\u00e9ho segmentu (napr. IP podsie\u0165). Je v\u017edy podraden\u00e1 Sieti. Podsiete n\u00e1m umo\u017e\u0148uj\u00fa nastavi\u0165 IP rozsahy pre dynamick\u00e9 prira\u010fovanie adries cez DHCP alebo DNS servery ktor\u00e9 m\u00e1 in\u0161tancia v tejto sieti pou\u017e\u00edva\u0165.<\/li><li><strong>Serverov\u00e9 skupiny (Server Groups)<\/strong>\u00a0\u2013 Umo\u017e\u0148uj\u00fa definova\u0165 politiky umiest\u0148ovania in\u0161tanci\u00ed na fyzick\u00fdch serveroch. Napr\u00edklad, ak chceme aby boli v\u0161etky webservery na rozdielnych fyzick\u00fdch serveroch, vytvor\u00edme Server Group s n\u00e1zvom Webservers s politikou \u201eanti-affinity\u201c. Pri vytv\u00e1ran\u00ed in\u0161tancie ju zarad\u00edme do serverovej skupiny Webservers aby bola vytvoren\u00e1 na fyzickom serveri, kde e\u0161te \u017eiaden webov\u00fd server nebe\u017e\u00ed.<\/li><li><strong>SSH k\u013e\u00fa\u010de (Key Pairs)<\/strong>\u00a0\u2013 Verejn\u00e9 SSH k\u013e\u00fa\u010de z ktor\u00fdch m\u00f4\u017eeme pri vytv\u00e1ran\u00ed in\u0161tancie vybra\u0165 jeden, ktor\u00fd sa vlo\u017e\u00ed medzi autorizovan\u00e9 k\u013e\u00fa\u010de pou\u017e\u00edvate\u013ea.<\/li><li><strong>Sie\u0165 (Network)<\/strong>\u00a0\u2013 Anal\u00f3gia L2 sie\u0165ov\u00e9ho segmentu (napr. Ethernet) vo fyzickej infra\u0161trukt\u00fare. Umo\u017e\u0148uje rozdeli\u0165 komunik\u00e1ciu medzi servermi pod\u013ea \u00fa\u010delu, napr\u00edklad na komunik\u00e1ciu s backup serverom, komunik\u00e1ciu s Internetom a intern\u00fa komunik\u00e1ciu. Ka\u017ed\u00e1 Sie\u0165 m\u00f4\u017ee ma\u0165 viacero Podsiet\u00ed, ktor\u00e9 zodpovedaj\u00fa r\u00f4znym IP rozsahom.<\/li><li><strong>Sie\u0165ov\u00e9 rozhranie (Port)<\/strong>\u00a0\u2013 Virtu\u00e1lny sie\u0165ov\u00fd adapt\u00e9r pripojite\u013en\u00fd ku in\u0161tancii, ktor\u00fd bude v opera\u010dnom syst\u00e9me identifikovan\u00fd ako samostatn\u00e1 sie\u0165ov\u00e1 karta.<\/li><li><strong>Snapshot<\/strong>\u00a0\u2013 Moment\u00e1lny obraz disku existuj\u00facej in\u0161tancie. Vytvoren\u00edm snapshotu sa ulo\u017e\u00ed s\u00fa\u010dasn\u00fd stav disku do obrazu, ktor\u00fd m\u00f4\u017eeme \u010falej pou\u017e\u00edva\u0165 na vytv\u00e1ranie nov\u00fdch in\u0161tanci\u00ed, alebo na n\u00e1vrat in\u0161tancie do p\u00f4vodn\u00e9ho stavu.<\/li><li><strong>Zdroje (Resources)<\/strong>\u00a0\u2013 Virtualizovan\u00e9 komponenty ktor\u00e9 m\u00f4\u017eeme pou\u017ei\u0165 samostatne alebo ako stavebn\u00e9 prvky in\u0161tancie. Ide napr\u00edklad o sie\u0165ov\u00fd port, Flavor, obraz disku (image) alebo defin\u00edcia firewall pravidiel.<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Z\u00e1kladn\u00e9 koncepty a stavebn\u00e9 bloky Virtu\u00e1lneho d\u00e1tov\u00e9ho centra (VDC). Slovensk\u00e9 n\u00e1zvy s\u00fa \u010falej pou\u017e\u00edvan\u00e9 v dokument\u00e1cii, anglick\u00e9 n\u00e1zvy s\u00fa uveden\u00e9 ako referencia ku Dashboard rozhraniu. Availability zone, AZ\u00a0\u2013 Z\u00f3na, v ktorej s\u00fa zdroje v\u017edy dostupn\u00e9 alebo nedostupn\u00e9 ako skupina. Z\u00f3na zodpoved\u00e1 konkr\u00e9tnemu datacentru v konkr\u00e9tnom meste. Viacer\u00e9 z\u00f3ny umo\u017e\u0148uj\u00fa prisp\u00f4sobenie&#8230;<\/p>\n","protected":false},"author":28,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[228],"ht-kb-tag":[],"class_list":["post-10887","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-vdc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Koncepty a terminol\u00f3gia VDC - Websupport centrum podpory<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.sk\/podpora\/kb\/koncepty-a-terminologia-vdc\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Koncepty a terminol\u00f3gia VDC - Websupport centrum podpory\" \/>\n<meta property=\"og:description\" content=\"Z\u00e1kladn\u00e9 koncepty a stavebn\u00e9 bloky Virtu\u00e1lneho d\u00e1tov\u00e9ho centra (VDC). 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