{"id":34259,"date":"2025-11-13T09:58:22","date_gmt":"2025-11-13T08:58:22","guid":{"rendered":"https:\/\/www.websupport.sk\/podpora\/?post_type=ht_kb&p=34259"},"modified":"2025-11-13T09:58:24","modified_gmt":"2025-11-13T08:58:24","slug":"zmena-parametrov-flavor-pre-vm-vo-vdc","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.sk\/podpora\/kb\/zmena-parametrov-flavor-pre-vm-vo-vdc\/","title":{"rendered":"Zmena parametrov (flavor) pre VM vo VDC"},"content":{"rendered":"\n

V tomto n\u00e1vode si uk\u00e1\u017eeme, ako zmeni\u0165 parametre (tzv. flavor<\/em>) virtu\u00e1lneho servera vo Websupport VDC<\/strong> prostred\u00ed, a pritom zachova\u0165 jeho p\u00f4vodn\u00fa IP adresu.<\/p>\n\n\n\n

Postup je mo\u017en\u00e9 vykona\u0165 priamo cez Horizon (Web GUI)<\/strong> alebo cez OpenStack CLI<\/strong>.<\/p>\n\n\n\n

\u010co je flavor<\/h2>\n\n\n\n

Flavor<\/strong> v OpenStacku ur\u010duje v\u00fdpo\u010dtov\u00e9 parametre virtu\u00e1lneho servera \u2013 po\u010det vCPU, ve\u013ekos\u0165 RAM. Zmena flavor-u teda znamen\u00e1 zmenu v\u00fdkonu servera bez potreby vytv\u00e1rania nov\u00e9ho syst\u00e9mu \u201cod nuly\u201d.<\/p>\n\n\n\n

Zmena flavor-u nemen\u00ed ve\u013ekos\u0165 diskov\u00e9ho priestoru. Ak V\u00e1s zauj\u00edma t\u00e1to oper\u00e1cia, odpor\u00fa\u010dame si pozrie\u0165 nasleduj\u00faci n\u00e1vod -> https:\/\/www.websupport.sk\/podpora\/kb\/navysenie-diskoveho-priestoru-volume-pre-vm-vo-vdc\/ <\/a><\/p>\n\n\n\n

Zmena flavor-u nie je mo\u017en\u00e1 priamo na be\u017eiacej in\u0161tancii, vy\u017eaduje si re\u0161tart (reboot) VM-ky. Pred \u00fapravou preto odpor\u00fa\u010dame server vypn\u00fa\u0165. (Shut off). <\/p>\n\n\n\n

Mo\u017enosti vykonania zmeny flavor-u so zachovan\u00edm IP adresy<\/h2>\n\n\n\n

Pri zmene flavor-u sa m\u00f4\u017ee sta\u0165, \u017ee VM z\u00edska nov\u00fa IP adresu (od DHCP servera). Aby ste IP zachovali, je potrebn\u00e9 zachova\u0165 alebo znovu pou\u017ei\u0165 rovnak\u00fd sie\u0165ov\u00fd port<\/strong>.<\/p>\n\n\n\n

Zachovanie IP je mo\u017en\u00e9 dosiahnu\u0165 dvoma sp\u00f4sobmi:<\/p>\n\n\n\n

    \n
  • Resize (zmena flavor-u existuj\u00facej VM)<\/strong> \u2013 jednoduch\u0161\u00ed sp\u00f4sob, IP sa zachov\u00e1 automaticky. Tento n\u00e1vod je zameran\u00fd na tento sp\u00f4sob.<\/li>\n\n\n\n
  • Recreate (Zmazanie a op\u00e4tovn\u00e9 vytvorenie VM s rovnak\u00fdm diskom (volume-om)<\/strong> \u2013 vhodn\u00e9 pri potrebe v\u00e4\u010d\u0161ej kontroly nad konfigur\u00e1ciou, napr. Ke\u010f chceme zmeni\u0165 aj in\u00e9 veci ako len po\u010det vCPU a ve\u013ekos\u0165 RAM.<\/li>\n<\/ul>\n\n\n\n

    Web GUI<\/h2>\n\n\n\n

    Po prihl\u00e1sen\u00ed sa do webov\u00e9ho dashboardu VDC sa presunieme do \u010dasti Compute \u2192 Instances<\/strong> a n\u00e1jdeme in\u0161tanciu (VM), ktorej chceme zmeni\u0165 flavor. V na\u0161om pr\u00edpade chceme nav\u00fd\u0161i\u0165 v\u00fdpo\u010dtov\u00e9 zdroje pre VM s n\u00e1zvom ubuntu<\/strong>, vi\u010f obr\u00e1zok \u010d. 1.<\/p>\n\n\n\n

    Aktu\u00e1lne m\u00e1 VM ubuntu flavor public.c4m4<\/em> , ktor\u00fd n\u00e1m u\u017e z n\u00e1zvu prezr\u00e1dza, \u017ee sa jedn\u00e1 o 4vCPU a 4GiB RAM.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    Ako bolo vy\u0161\u0161ie spomenut\u00e9, zmenu parametrov nie je mo\u017en\u00e9 vykona\u0165 bez re\u0161tartovania (reboot) in\u0161tancie. Ak by sme hne\u010f klikli na \u201cresize\u201d, VM-ka by sa vypla automaticky. Je lep\u0161ie, ak in\u0161tanciu vypneme \u201ckontrolovane\u201d z prostredia opera\u010dn\u00e9ho syst\u00e9mu.\u00a0<\/p>\n\n\n\n

    Ke\u010f budeme ma\u0165 in\u0161tanciu vypnut\u00fa, m\u00f4\u017eeme zah\u00e1ji\u0165 proces zmeny flavor-u. V pravom hornom rohu, pri tla\u010didle Start Instance<\/strong>, klikneme na \u0161\u00edpku. Zobraz\u00ed sa n\u00e1m rozba\u013eovacie menu, kde n\u00e1sledne vyberieme mo\u017enos\u0165 Resize<\/strong>, vi\u010f obr\u00e1zok \u010d. 2<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    Zobraz\u00ed sa pop-up okno s n\u00e1zvom Resize Instance<\/strong>, kde si v \u010dasti New Flavor vyberieme nov\u00e9 v\u00fdpo\u010dtov\u00e9 zdroje. V na\u0161om pr\u00edpade navy\u0161ujeme z p\u00f4vodn\u00fdch 4 vCPU a 4\u202fGiB RAM na 8vCPU a 12\u202fGiB RAM. Po zadan\u00ed flavor-u klikneme na tla\u010didlo RESIZE<\/strong>, vi\u010f obr\u00e1zok \u010d. 3.
    <\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    Ak by ste v zozname dostupn\u00fdch flavor-ov nevideli vhodn\u00e9 zdroje pre va\u0161u in\u0161tanciu, napr. potrebovali by ste 10 vCPU a 10GiB RAM (tak\u00fd flavor neexistuje), nev\u00e1hajte n\u00e1s kontaktova\u0165 a my V\u00e1m ho prid\u00e1me s t\u00fdm, \u017ee bude vidite\u013en\u00fd len pre va\u0161e VDC.<\/p>\n\n\n\n

    Posledn\u00fdm krokom pre aktiv\u00e1ciu nov\u00e9ho flavor-u je je potvrdenie \u201cresize\u201d akcie. Sta\u010d\u00ed klikn\u00fa\u0165 Confirm Resize\/Migrate <\/strong>tla\u010didlo vi\u010f obr\u00e1zok \u010d. 4.
    <\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    CLI<\/h2>\n\n\n\n

    Pri pou\u017eit\u00ed rozhrania CLI predpoklad\u00e1me, \u017ee pou\u017e\u00edvate\u013e ovl\u00e1da z\u00e1kladn\u00e9 znalosti pr\u00e1ce so shellom. Preto si v tomto n\u00e1vode uk\u00e1\u017eeme len tie najd\u00f4le\u017eitej\u0161ie pr\u00edkazy, ktor\u00e9 s\u00fa potrebn\u00e9 na nav\u00fd\u0161enie diskov\u00e9ho priestoru cez pr\u00edkazov\u00fd riadok.<\/p>\n\n\n\n

    Vylistovanie v\u0161etk\u00fdch virtu\u00e1lnych serverov:<\/p>\n\n\n\n

    openstack server list<\/pre>\n\n\n\n
    Zobrazenie inform\u00e1cii, vr\u00e1tane aktu\u00e1lneho flavor-u, o serveri s n\u00e1zvom \u201cubuntu\u201d:<\/p>\n\n\n\n
    openstack flavor list<\/pre>\n\n\n\n
    Zmena flavor-u z aktu\u00e1lneho na 8vCPU a 12\u202fGiB RAM (flavor s n\u00e1zvom pubic.c8m12):<\/p>\n\n\n\n
    openstack server resize --flavor <flavor_name> <server_name>
    openstack server resize --flavor public.c8m12 ubuntu<\/pre>\n\n\n\n
    N\u00e1sledne sp\u00fa\u0161\u0165ame pr\u00edkaz openstack server list<\/em><\/strong>, k\u00fdm pri VM s n\u00e1zvom ubuntu neuvid\u00edme Status\u00a0VERIFY_RESIZE.\u00a0<\/strong><\/p>\n\n\n\n
    openstack server resize confirm <server_name>
    openstack server resize confirm ubuntu<\/pre>\n","protected":false},"excerpt":{"rendered":"
    V tomto n\u00e1vode si uk\u00e1\u017eeme, ako zmeni\u0165 parametre (tzv. flavor) virtu\u00e1lneho servera vo Websupport VDC prostred\u00ed, a pritom zachova\u0165 jeho p\u00f4vodn\u00fa IP adresu. Postup je mo\u017en\u00e9 vykona\u0165 priamo cez Horizon (Web GUI) alebo cez OpenStack CLI. \u010co je flavor Flavor v OpenStacku ur\u010duje v\u00fdpo\u010dtov\u00e9 parametre virtu\u00e1lneho servera \u2013 po\u010det vCPU,…<\/p>\n","protected":false},"author":57,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[228],"ht-kb-tag":[336,339,192],"class_list":["post-34259","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-vdc","ht_kb_tag-cli","ht_kb_tag-open-source","ht_kb_tag-vdc"],"yoast_head":"\nZmena parametrov (flavor) pre VM vo VDC - Websupport centrum podpory<\/title>\n<meta name=\"description\" content=\"V tomto n\u00e1vode si uk\u00e1\u017eeme, ako zmeni\u0165 parametre (tzv. flavor) virtu\u00e1lneho servera vo Websupport VDC prostred\u00ed.\" \/>\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\/zmena-parametrov-flavor-pre-vm-vo-vdc\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Zmena parametrov (flavor) pre VM vo VDC - 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