{"id":11040,"date":"2019-09-30T12:55:38","date_gmt":"2019-09-30T10:55:38","guid":{"rendered":"https:\/\/www.websupport.sk\/podpora\/?post_type=ht_kb&p=11040"},"modified":"2026-07-13T14:10:42","modified_gmt":"2026-07-13T12:10:42","slug":"flavors-vo-vdc","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.sk\/podpora\/kb\/flavors-vo-vdc\/","title":{"rendered":"Parametre in\u0161tancie (flavors) vo VDC"},"content":{"rendered":"\n

Tento \u010dl\u00e1nok vysvet\u013euje, \u010do s\u00fa flavors<\/em> vo va\u0161om VDC, ktor\u00e9 flavors s\u00fa verejne dostupn\u00e9, \u010do znamen\u00e1 konvencia ich pomenovania, ako vytvori\u0165 in\u0161tanciu s konkr\u00e9tnym flavorom a ako zmeni\u0165 flavor existuj\u00facej in\u0161tancie \u2014 cez webov\u00e9 rozhranie aj cez OpenStack CLI. V\u0161etky CLI pr\u00edkazy v tomto \u010dl\u00e1nku predpokladaj\u00fa nain\u0161talovan\u00e9ho a prihl\u00e1sen\u00e9ho OpenStack CLI klienta \u2014 postup in\u0161tal\u00e1cie a prihl\u00e1senia n\u00e1jdete v \u010dl\u00e1nku Pr\u00edstup a mana\u017ement do VDC pomocou CLI<\/a>.<\/p>\n\n\n\n

Obsah:<\/p>\n\n\n\n

    \n
  1. Terminol\u00f3gia (\u0161pecifick\u00e9 pojmy VDC)<\/li>\n\n\n\n
  2. \u010co definuje flavor?<\/li>\n\n\n\n
  3. Konvencia pomenovania<\/li>\n\n\n\n
  4. Verejne dostupn\u00e9 flavors<\/li>\n\n\n\n
  5. Vlastn\u00e9 flavors<\/li>\n\n\n\n
  6. Vytvorenie novej in\u0161tancie so zvolen\u00fdm flavorom<\/li>\n\n\n\n
  7. Zmena flavoru existuj\u00facej in\u0161tancie (resize)<\/li>\n\n\n\n
  8. \u010cast\u00e9 ot\u00e1zky<\/li>\n<\/ol>\n\n\n\n

    Terminol\u00f3gia (\u0161pecifick\u00e9 pojmy VDC)<\/strong><\/h3>\n\n\n\n
      \n
    • Flavor<\/strong> \u2014 hardv\u00e9rov\u00fd profil in\u0161tancie; definuje po\u010det virtu\u00e1lnych procesorov (vCPU) a ve\u013ekos\u0165 opera\u010dnej pam\u00e4te (RAM).<\/li>\n\n\n\n
    • In\u0161tancia<\/strong> \u2014 virtu\u00e1lny server (VM) be\u017eiaci vo va\u0161om VDC.<\/li>\n\n\n\n
    • Volume<\/strong> \u2014 samostatn\u00fd sie\u0165ov\u00fd disk. Ka\u017ed\u00e1 in\u0161tancia vo VDC bootuje z volume, ktor\u00e9ho ve\u013ekos\u0165 je nez\u00e1visl\u00e1 od flavoru. Vytvorenie bootovate\u013en\u00e9ho volume nie je predmetom tohto \u010dl\u00e1nku \u2014 predpoklad\u00e1me, \u017ee volume u\u017e m\u00e1te vytvoren\u00fd.<\/li>\n\n\n\n
    • Resize<\/strong> \u2014 zmena flavoru existuj\u00facej in\u0161tancie, teda nav\u00fd\u0161enie alebo zn\u00ed\u017eenie vCPU a RAM.<\/li>\n<\/ul>\n\n\n\n

      \u010co definuje flavor?<\/strong><\/h3>\n\n\n\n

      Pri vytv\u00e1ran\u00ed in\u0161tancie si v\u017edy vyber\u00e1te flavor; ke\u010f sa va\u0161e potreby zmenia, m\u00f4\u017eete existuj\u00facu in\u0161tanciu prepn\u00fa\u0165 na in\u00fd flavor (resize).<\/p>\n\n\n\n

      Flavor definuje iba vCPU a RAM<\/strong>. Ve\u013ekos\u0165 disku nie je<\/strong> s\u00fa\u010das\u0165ou flavoru (disk = 0) \u2014 ka\u017ed\u00e1 in\u0161tancia bootuje zo samostatn\u00e9ho volume, ktor\u00e9ho ve\u013ekos\u0165 je od flavoru nez\u00e1visl\u00e1. V\u010faka tomu m\u00f4\u017eete meni\u0165 CPU\/RAM bez z\u00e1sahu do d\u00e1tov\u00e9ho disku. V\u00fdkon disku ur\u010duje storage (volume), nie flavor \u2014 bootovac\u00ed volume aj \u010fal\u0161ie pripojen\u00e9 volumes poskytuj\u00fa rovnak\u00fd I\/O v\u00fdkon bez oh\u013eadu na to, ak\u00fd flavor in\u0161tancia pou\u017e\u00edva.<\/p>\n\n\n\n

      Konvencia pomenovania<\/strong><\/h3>\n\n\n\n

      Verejn\u00e9 flavors maj\u00fa tvar:<\/p>\n\n\n\n

      public.c<po\u010det vCPU>m<RAM v GB><\/pre>\n\n\n\n
      Pr\u00edklad: `public.c8m16`<\/strong> = 8 vCPU<\/strong> a 16 GB RAM<\/strong>.<\/p>\n\n\n\n
      Verejne dostupn\u00e9 flavors<\/strong><\/h3>\n\n\n\n
      Nasleduj\u00face flavors s\u00fa dostupn\u00e9 ka\u017ed\u00e9mu z\u00e1kazn\u00edkovi VDC:<\/p>\n\n\n\n
      Flavor<\/strong><\/td>vCPU<\/strong><\/td>RAM<\/strong><\/td><\/tr>
      public.c1m1<\/td>1<\/td>1 GB<\/td><\/tr>
      public.c2m2<\/td>2<\/td>2 GB<\/td><\/tr>
      public.c2m4<\/td>2<\/td>4 GB<\/td><\/tr>
      public.c4m4<\/td>4<\/td>4 GB<\/td><\/tr>
      public.c4m8<\/td>4<\/td>8 GB<\/td><\/tr>
      public.c8m8<\/td>8<\/td>8 GB<\/td><\/tr>
      public.c8m12<\/td>8<\/td>12 GB<\/td><\/tr>
      public.c8m16<\/td>8<\/td>16 GB<\/td><\/tr>
      public.c12m16<\/td>12<\/td>16 GB<\/td><\/tr>
      public.c12m32<\/td>12<\/td>32 GB<\/td><\/tr>
      public.c16m32<\/td>16<\/td>32 GB<\/td><\/tr>
      public.c32m64<\/td>32<\/td>64 GB<\/td><\/tr>
      public.c40m128<\/td>40<\/td>128 GB<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      Kedyko\u013evek si ich viete vyp\u00edsa\u0165 sami:<\/p>\n\n\n\n
      $ openstack flavor list<\/pre>\n\n\n\n
      Detail konkr\u00e9tneho flavoru:<\/p>\n\n\n\n
      $ openstack flavor show public.c8m16
      +----------------------------+--------------------------------------+
      | Field                      | Value                                |
      +----------------------------+--------------------------------------+
      | name                       | public.c8m16                         |
      | vcpus                      | 8                                    |
      | ram                        | 16384                                |
      | disk                       | 0                                    |
      | os-flavor-access:is_public | True                                 |
      +----------------------------+--------------------------------------+<\/pre>\n\n\n\n
      Vlastn\u00e9 flavor<\/strong>s<\/h3>\n\n\n\n
      Ak v\u00e1m \u017eiadny z verejn\u00fdch flavors nevyhovuje (napr. potrebujete 6 vCPU so 16 GB RAM alebo in\u00fd pomer CPU\/RAM), kontaktujte na\u0161u z\u00e1kazn\u00edcku podporu. Vytvor\u00edme v\u00e1m priv\u00e1tny flavor<\/strong> dedikovan\u00fd pre v\u00e1\u0161 projekt. Priv\u00e1tne flavors s\u00fa pomenovan\u00e9 pod\u013ea v\u00e1\u0161ho VDC, napr.:<\/p>\n\n\n\n
      vdc_example.6cpu16384ram0disk   (6 vCPU, 16 GB RAM)<\/pre>\n\n\n\n
      Priv\u00e1tne flavors sa zobrazia vo va\u0161om zozname flavors spolu s verejn\u00fdmi a pou\u017e\u00edvaj\u00fa sa \u00faplne rovnako.<\/p>\n\n\n\n
      Vytvorenie novej in\u0161tancie so zvolen\u00fdm flavorom<\/strong><\/h3>\n\n\n\n
      V nasleduj\u00facich krokoch predpoklad\u00e1me, \u017ee u\u017e m\u00e1te vytvoren\u00fd bootovate\u013en\u00fd volume s opera\u010dn\u00fdm syst\u00e9mom (jeho vytvorenie nie je predmetom tohto \u010dl\u00e1nku).<\/p>\n\n\n\n
      Webov\u00e9 rozhranie (WebGUI)<\/strong><\/p>\n\n\n\n
      Prejdite na Project \u2192 Compute \u2192 Instances<\/strong> a kliknite na Launch Instance<\/strong>. Vypl\u0148te nasledovn\u00e9 polia:<\/p>\n\n\n\n
        \n
      • Z\u00e1lo\u017eka Details<\/strong> \u2014 Instance Name<\/strong>: \u013eubovo\u013en\u00fd n\u00e1zov, napr. web-1<\/code>.<\/li>\n\n\n\n
      • Z\u00e1lo\u017eka Source<\/strong> \u2014 Select Boot Source<\/strong>: Volume, vyberte svoj existuj\u00faci bootovate\u013en\u00fd volume tla\u010didlom so \u0161\u00edpkou \u2191<\/strong> . Pripom\u00edname: ve\u013ekos\u0165 disku ur\u010duje volume, nie flavor.<\/li>\n\n\n\n
      • Z\u00e1lo\u017eka Flavor<\/strong> \u2014 vyberte po\u017eadovan\u00fd flavor (napr. public.c1m1<\/code>) tla\u010didlom so \u0161\u00edpkou \u2191<\/strong>. Tabu\u013eka zobrazuje vCPU a RAM ka\u017ed\u00e9ho flavoru.<\/li>\n\n\n\n
      • Z\u00e1lo\u017eka Networks<\/strong> \u2014 vyberte svoju sie\u0165 (napr. default-network<\/code>).<\/li>\n\n\n\n
      • Z\u00e1lo\u017eky Security Groups<\/strong> a Key Pair<\/strong> \u2014 vyberte security group a svoj SSH k\u013e\u00fa\u010d.<\/li>\n<\/ul>\n\n\n\n
        Kliknite na Launch Instance<\/strong>. In\u0161tancia sa zobraz\u00ed v zozname so stavom Build<\/em> a kr\u00e1tko nato Active<\/em>.<\/p>\n\n\n\n
        CLI<\/strong><\/p>\n\n\n\n
        $ openstack server create \\
            --flavor public.c1m1 \\
            --volume moj-volume \\
            --network default-network \\
            --key-name moj-kluc \\
            --security-group default \\
            moj-server<\/pre>\n\n\n\n
        Po\u010dkajte, k\u00fdm in\u0161tancia prejde do stavu ACTIVE:<\/p>\n\n\n\n
        $ openstack server show moj-server -f value -c status
        ACTIVE<\/pre>\n\n\n\n
        Zmena flavoru existuj\u00facej in\u0161tancie (resize)<\/strong><\/h3>\n\n\n\n
        Upozornenie:<\/strong> resize vy\u017eaduje re\u0161tart in\u0161tancie \u2014 in\u0161tancia sa kr\u00e1tko vypne a na\u0161tartuje s novou konfigur\u00e1ciou. Zmenu si napl\u00e1nujte do \u00fadr\u017ebov\u00e9ho okna. Va\u0161e d\u00e1ta na volume zostan\u00fa nedotknut\u00e9.<\/p>\n\n\n\n
        Resize je dvojkrokov\u00e1 oper\u00e1cia:<\/p>\n\n\n\n
          \n
        1. Resize<\/strong> \u2014 in\u0161tancia sa presunie na nov\u00fd flavor a prejde do stavu VERIFY_RESIZE.<\/li>\n\n\n\n
        2. Confirm<\/strong> (alebo Revert<\/strong>) \u2014 over\u00edte, \u017ee in\u0161tancia funguje spr\u00e1vne, a zmenu potvrd\u00edte; ak nie\u010do nie je v poriadku, m\u00f4\u017eete sa vr\u00e1ti\u0165 k p\u00f4vodn\u00e9mu flavoru.<\/li>\n<\/ol>\n\n\n\n
          Webov\u00e9 rozhranie (WebGUI)<\/strong><\/p>\n\n\n\n
          Prejdite na Project \u2192 Compute \u2192 Instances<\/strong>. V riadku in\u0161tancie otvorte rozba\u013eovacie menu v st\u013apci Actions<\/strong> a zvo\u013ete Resize Instance<\/strong>. Vypl\u0148te nasledovn\u00e9 polia:<\/p>\n\n\n\n
            \n
          • New Flavor<\/strong>: nov\u00fd flavor, napr. public.c2m2<\/li>\n<\/ul>\n\n\n\n
            Kliknite na Resize<\/strong>. Stav in\u0161tancie sa zmen\u00ed na Resize\/Migrate<\/em> a n\u00e1sledne na Confirm or Revert Resize\/Migrate<\/strong>. Overte, \u017ee in\u0161tancia funguje spr\u00e1vne, a kliknite na Confirm Resize\/Migrate<\/strong> v st\u013apci Actions<\/strong>. Ak sa nie\u010do pokazilo, zvo\u013ete Revert Resize\/Migrate<\/strong> \u2014 vr\u00e1tite sa k p\u00f4vodn\u00e9mu flavoru. Stav in\u0161tancie sa vr\u00e1ti na Active<\/em> a v st\u013apci Flavor<\/strong> uvid\u00edte nov\u00fd flavor.<\/p>\n\n\n\n
            CLI<\/strong><\/p>\n\n\n\n
            Zistenie aktu\u00e1lneho flavoru:<\/p>\n\n\n\n
            $ openstack server show moj-server -f value -c flavor
            name='public.c1m1', vcpus=1, ram=1024, ...<\/pre>\n\n\n\n
            Spustenie resize:<\/p>\n\n\n\n
            $ openstack server resize --flavor public.c2m2 moj-server<\/pre>\n\n\n\n
            Sledujte stav \u2014 postupne prech\u00e1dza RESIZE \u2192 VERIFY_RESIZE (typicky do min\u00faty):<\/p>\n\n\n\n
            $ openstack server show moj-server -f value -c status
            RESIZE
            $ openstack server show moj-server -f value -c status
            VERIFY_RESIZE<\/pre>\n\n\n\n
            Potvrdenie resize (alebo n\u00e1vrat sp\u00e4\u0165 cez openstack server resize revert moj-server):
            <\/p>\n\n\n\n
            $ openstack server resize confirm moj-server<\/pre>\n\n\n\n
            Overenie:<\/p>\n\n\n\n
            $ openstack server show moj-server -f value -c status -c flavor
            name='public.c2m2', vcpus=2, ram=2048, ...
            ACTIVE<\/pre>\n\n\n\n
            Hotovo \u2014 in\u0161tancia be\u017e\u00ed s nov\u00fdm flavorom.<\/p>\n\n\n\n
            \u010cast\u00e9 ot\u00e1zky<\/strong><\/p>\n\n\n\n
            Zmen\u00ed sa pri zmene flavoru aj ve\u013ekos\u0165 disku?<\/strong><\/p>\n\n\n\n
            Nie. Vo VDC je disk samostatn\u00fd volume \u2014 flavor men\u00ed iba vCPU a RAM. Zv\u00e4\u010d\u0161enie volume je samostatn\u00e1 oper\u00e1cia.<\/p>\n\n\n\n
            Pr\u00eddem pri resize o d\u00e1ta?<\/strong><\/p>\n\n\n\n
            Nie. In\u0161tancia sa re\u0161tartuje, ale volume s va\u0161imi d\u00e1tami zost\u00e1va nedotknut\u00fd. Pred ka\u017edou zmenou v\u0161ak odpor\u00fa\u010dame z\u00e1lohu\/snapshot.<\/p>\n\n\n\n
            Ako dlho trv\u00e1 resize?<\/strong><\/p>\n\n\n\n
            Typicky do min\u00faty plus \u010das \u0161tartu v\u00e1\u0161ho opera\u010dn\u00e9ho syst\u00e9mu.<\/p>\n\n\n\n
            \u010co ak mi \u017eiadny flavor nevyhovuje?<\/strong><\/p>\n\n\n\n
            Kontaktujte na\u0161u z\u00e1kazn\u00edcku podporu \u2014 vytvor\u00edme v\u00e1m vlastn\u00fd (priv\u00e1tny) flavor na mieru pre v\u00e1\u0161 projekt.<\/p>\n\n\n\n
            Sp\u00fdtajte sa n\u00e1s, radi porad\u00edme<\/strong><\/p>\n\n\n\n
            Ak si s nie\u010d\u00edm neviete rady alebo v\u00e1m nevyhovuje \u017eiadny z verejn\u00fdch flavorov, kontaktujte na\u0161u z\u00e1kazn\u00edcku podporu \u2013 radi v\u00e1m pom\u00f4\u017eeme.<\/p>\n\n\n\n
            <\/p>\n","protected":false},"excerpt":{"rendered":"
            Tento \u010dl\u00e1nok vysvet\u013euje, \u010do s\u00fa flavors vo va\u0161om VDC, ktor\u00e9 flavors s\u00fa verejne dostupn\u00e9, \u010do znamen\u00e1 konvencia ich pomenovania, ako vytvori\u0165 in\u0161tanciu s konkr\u00e9tnym flavorom a ako zmeni\u0165 flavor existuj\u00facej in\u0161tancie \u2014 cez webov\u00e9 rozhranie aj cez OpenStack CLI. V\u0161etky CLI pr\u00edkazy v tomto \u010dl\u00e1nku predpokladaj\u00fa nain\u0161talovan\u00e9ho a prihl\u00e1sen\u00e9ho OpenStack…<\/p>\n","protected":false},"author":28,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[228],"ht-kb-tag":[336,192],"class_list":["post-11040","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-vdc","ht_kb_tag-cli","ht_kb_tag-vdc"],"yoast_head":"\nParametre in\u0161tancie (flavors) vo 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\/flavors-vo-vdc\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Parametre in\u0161tancie (flavors) vo VDC - Websupport centrum podpory\" \/>\n<meta property=\"og:description\" content=\"Tento \u010dl\u00e1nok vysvet\u013euje, \u010do s\u00fa flavors vo va\u0161om VDC, ktor\u00e9 flavors s\u00fa verejne dostupn\u00e9, \u010do znamen\u00e1 konvencia ich pomenovania, ako vytvori\u0165 in\u0161tanciu s konkr\u00e9tnym flavorom a ako zmeni\u0165 flavor existuj\u00facej in\u0161tancie \u2014 cez webov\u00e9 rozhranie aj cez OpenStack CLI. 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