{"id":33523,"date":"2019-10-31T21:53:05","date_gmt":"2019-10-31T18:53:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/hranilishhe-linstor-i-ego-integratsiya-s-opennebula\/"},"modified":"2019-10-31T21:53:05","modified_gmt":"2019-10-31T18:53:05","slug":"hranilishhe-linstor-i-ego-integratsiya-s-opennebula","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/hranilishhe-linstor-i-ego-integratsiya-s-opennebula","title":{"rendered":"LINSTOR \u00falo\u017eisko a jeho integr\u00e1cia s OpenNebula","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"LINSTOR \u00falo\u017eisko a jeho integr\u00e1cia s OpenNebula\" src=\"\/wp-content\/uploads\/2019\/05\/c8b6a7c02c4e5b043be327838152f8a1.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Ned\u00e1vno predstavili chlapci z LINBIT svoje nov\u00e9 rie\u0161enie SDS \u2013 Linstor. Je to \u00faplne open-source \u00falo\u017eisko, ktor\u00e9 vyu\u017e\u00edva osved\u010den\u00e9 technol\u00f3gie: DRBD, LVM, ZFS. Linstor kombinuje jednoduchos\u0165 a dobre premyslen\u00fa architekt\u00faru, \u010do umo\u017e\u0148uje dosiahnu\u0165 stabilitu a dos\u0165 impozantn\u00e9 v\u00fdsledky.<\/p>\n<p><\/p>\n<p>Dnes by som chcel podrobnej\u0161ie predstavi\u0165 tento produkt a uk\u00e1za\u0165, ak\u00e9 jednoduch\u00e9 je ho integrova\u0165 s OpenNebula pomocou linstor_un \u2013 nov\u00e9ho ovl\u00e1da\u010da, ktor\u00fd som vyvinul \u0161peci\u00e1lne na tento \u00fa\u010del.<\/p>\n<p><\/p>\n<p>Linstor v kombin\u00e1cii s OpenNebula umo\u017e\u0148uje vytvori\u0165 r\u00fdchly a spo\u013eahliv\u00fd cloud, ktor\u00fd sa d\u00e1 bez probl\u00e9mov nasadi\u0165 na vlastnej infra\u0161trukt\u00fare.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2 id=\"arhitektura-linstor\">Architekt\u00fara Linstor<\/h2>\n<p><\/p>\n<p>Linstor nie je samotn\u00fd s\u00faborov\u00fd syst\u00e9m ani blokov\u00e9 \u00falo\u017eisko, Linstor je orchestr\u00e1tor, ktor\u00fd poskytuje vrstvu abstrakcie umo\u017e\u0148uj\u00facu automatizova\u0165 vytv\u00e1ranie objemov v LVM alebo ZFS a replikova\u0165 ich pomocou DRBD9.<\/p>\n<p><\/p>\n<h5 id=\"lomaem-stereotipy\">L\u00e1meme stereotypy<\/h5>\n<p><\/p>\n<p>Ale po\u010dkajte, DRBD? \u2013 Pre\u010do ho automatizova\u0165 a ako vlastne m\u00f4\u017ee fungova\u0165?<\/p>\n<p><\/p>\n<p>Spome\u0148me si na minulost, ke\u010f bol DRBD8 ve\u013emi popul\u00e1rny. Jeho \u0161tandardn\u00e9 pou\u017eitie predpokladalo vytvorenie jedn\u00e9ho ve\u013ek\u00e9ho blokov\u00e9ho zariadenia a jeho rozdelenie na mnoho mal\u00fdch \u010dast\u00ed pomocou toho ist\u00e9ho LVM. Nie\u010do ako mdadm RAID-1, ale s replik\u00e1ciou cez sie\u0165.<\/p>\n<p><\/p>\n<p>Tento pr\u00edstup nie je bez nedostatkov, a preto s pr\u00edchodom DRBD9 sa z\u00e1sady budovania \u00falo\u017eiska zmenili, teraz sa pre ka\u017ed\u00fa virtu\u00e1lnu ma\u0161inu vytv\u00e1ra samostatn\u00e9 DRBD zariadenie.<\/p>\n<p><\/p>\n<p>Pr\u00edstup s nez\u00e1visl\u00fdmi blokov\u00fdmi zariadeniami umo\u017e\u0148uje lep\u0161ie vyu\u017ei\u0165 priestor v klastri a prid\u00e1va rad dodato\u010dn\u00fdch mo\u017enost\u00ed. Napr\u00edklad pre ka\u017ed\u00e9 tak\u00e9 zariadenie je mo\u017en\u00e9 ur\u010di\u0165 po\u010det replik, ich umiestnenie a individu\u00e1lne nastavenia. Je ich \u013eahk\u00e9 vytv\u00e1ra\u0165\/odstra\u0148ova\u0165, robi\u0165 sn\u00edmky, meni\u0165 ve\u013ekos\u0165, zap\u00edna\u0165 \u0161ifrovanie a mnoh\u00e9 \u010fal\u0161ie. Je dobr\u00e9 poznamena\u0165, \u017ee DRBD9 tie\u017e podporuje kv\u00f3rum, \u010do pom\u00e1ha predch\u00e1dza\u0165 situ\u00e1ci\u00e1m split-brain.<\/p>\n<p><\/p>\n<h5 id=\"resursy-i-bekendy\">Zdroje a backendy<\/h5>\n<p><\/p>\n<p>Pri vytv\u00e1ran\u00ed nov\u00e9ho blokov\u00e9ho zariadenia umiest\u0148uje Linstor po\u017eadovan\u00fd po\u010det replik na r\u00f4znych uzloch v klastri. Ka\u017ed\u00fa tak\u00fato repliku budeme naz\u00fdva\u0165 DRBD zdrojom.<\/p>\n<p><\/p>\n<p>Zdroje m\u00f4\u017eu by\u0165 dvoch typov:<\/p>\n<p><\/p>\n<ul>\n<li><strong>D\u00e1tov\u00fd zdroj<\/strong> \u2014 predstavuj\u00fa DRBD zariadenie umiestnen\u00e9 na node v LVM alebo ZFS poole.<br \/>\nV s\u00fa\u010dasnosti existuje podpora viacer\u00fdch backendov a ich po\u010det sa neust\u00e1le zvy\u0161uje. Existuje podpora pre LVM, ThinLVM a ZFS. Posledn\u00e9 dva umo\u017e\u0148uj\u00fa vytv\u00e1ra\u0165 a pou\u017e\u00edva\u0165 snapshoty.<\/li>\n<li><strong>Diskless-zdroj<\/strong> \u2014 predstavuje DRBD zariadenie umiestnen\u00e9 na node bez backendu, ale umo\u017e\u0148uje s n\u00edm zaobch\u00e1dza\u0165 ako s be\u017en\u00fdm blokov\u00fdm zariaden\u00edm, v\u0161etky oper\u00e1cie \u010d\u00edtania\/z\u00e1pisu bud\u00fa presmerovan\u00e9 na data-zdroje. Najbli\u017e\u0161\u00ed ekvivalent diskless-zdrojom je iSCSI LUN.<\/li>\n<\/ul>\n<p><\/p>\n<p>Ka\u017ed\u00fd DRBD zdroj m\u00f4\u017ee ma\u0165 a\u017e 8 replik, a len jedna z nich m\u00f4\u017ee by\u0165 predvolene akt\u00edvna \u2014 <strong>Prim\u00e1rne<\/strong>, v\u0161etky ostatn\u00e9 bud\u00fa <strong>Sekund\u00e1rne<\/strong> a ich pou\u017eitie nebude mo\u017en\u00e9, pokia\u013e existuje aspo\u0148 jeden Prim\u00e1rny, teda bud\u00fa len replikova\u0165 \u00fadaje medzi sebou.<\/p>\n<p><\/p>\n<p>Montovan\u00edm DRBD zariadenia do syst\u00e9mu sa automaticky st\u00e1va <strong>Prim\u00e1rne<\/strong>, tak\u017ee aj Diskless-zdroj, v terminol\u00f3gii DRBD, m\u00f4\u017ee by\u0165 Prim\u00e1rny.<\/p>\n<p><\/p>\n<h5 id=\"tak-zachem-nuzhen-linstor\">Tak na \u010do je Linstor?<\/h5>\n<p><\/p>\n<p>D\u00f4veruj\u00fac v\u0161etk\u00fdm zdrojovo n\u00e1ro\u010dn\u00fdm \u00faloh\u00e1m jadru, Linstor v podstate predstavuje be\u017en\u00fa Java aplik\u00e1ciu, ktor\u00e1 umo\u017e\u0148uje bez n\u00e1mahy automatizova\u0165 vytv\u00e1ranie DRBD zdrojov.<br \/>\nPritom ka\u017ed\u00fd n\u00edm vytvoren\u00fd zdroj bude predstavova\u0165 nez\u00e1visl\u00fd DRBD klaster, ktor\u00fd pracuje samostatne, bez oh\u013eadu na stav control-plane a ostatn\u00fdch DRBD zdrojov.<\/p>\n<p><\/p>\n<p><strong>Linstor pozost\u00e1va iba z dvoch komponentov:<\/strong><\/p>\n<p><\/p>\n<ul>\n<li><strong>Linstor-controller<\/strong> \u2014 Hlavn\u00fd kontrol\u00e9r, ktor\u00fd poskytuje API pre vytv\u00e1ranie a spr\u00e1vu zdrojov. Tie\u017e komunikuje so satelitmi, kontroluje vo\u013en\u00e9 miesto na nich a posiela \u00falohy na vytv\u00e1ranie a odstra\u0148ovanie nov\u00fdch zdrojov. Sp\u00fa\u0161\u0165a sa v jedinom in\u0161tancii a pou\u017e\u00edva datab\u00e1zu, ktor\u00e1 m\u00f4\u017ee by\u0165 bu\u010f vn\u00fatorn\u00e1 (H2), alebo vonkaj\u0161ia (PostgreSQL, MySQL, MariaDB)<\/li>\n<li><strong>Linstor-satellite<\/strong> \u2014 In\u0161taluje sa na v\u0161etky storage nody a poskytuje kontrol\u00e9ru inform\u00e1cie o vo\u013enom mieste, ako aj vykon\u00e1va \u00falohy prijat\u00e9 od kontrol\u00e9ra na vytv\u00e1ranie a odstra\u0148ovanie nov\u00fdch objemov a DRBD zariaden\u00ed nad nimi.<\/li>\n<\/ul>\n<p><\/p>\n<p><strong>Linstor operuje s nasleduj\u00facimi k\u013e\u00fa\u010dov\u00fdmi pojmami:<\/strong><\/p>\n<p><\/p>\n<ul>\n<li><strong>Node<\/strong> \u2014 fyzick\u00fd server, na ktorom bud\u00fa vytv\u00e1ran\u00e9 a pou\u017e\u00edvan\u00e9 DRBD zdroje.<\/li>\n<li><strong>Storage Pool<\/strong> \u2014 LVM alebo ZFS pool, vytvoren\u00fd na node, v ktorom bud\u00fa umiestnen\u00e9 DRBD zdroje. Taktie\u017e je mo\u017en\u00e9 diskless-pool \u2014 je to pool, v ktorom bud\u00fa umiestnen\u00e9 len diskless zdroje.<\/li>\n<li><strong>Defin\u00edcia Zdroja<\/strong> \u2014 Defin\u00edcia zdroja, v podstate je to prototyp, ktor\u00fd popisuje n\u00e1zov a v\u0161etky jeho vlastnosti.<\/li>\n<li><strong>Defin\u00edcia zv\u00e4zku<\/strong> \u2014 Defin\u00edcia zv\u00e4zku. Ka\u017ed\u00fd zdroj m\u00f4\u017ee pozost\u00e1va\u0165 z viacer\u00fdch zv\u00e4zkov, ka\u017ed\u00fd zv\u00e4zok mus\u00ed ma\u0165 ve\u013ekos\u0165.<\/li>\n<li><strong>Zdroje<\/strong> \u2014 Vytvoren\u00e1 in\u0161tancia blokov\u00e9ho zariadenia, ka\u017ed\u00fd zdroj mus\u00ed by\u0165 umiestnen\u00fd na ur\u010ditej n\u00f3d\u011b a v nejakom \u00falo\u017enom pooli.<\/li>\n<\/ul>\n<p><\/p>\n<h2 id=\"ustanovka-linstor\">In\u0161tal\u00e1cia Linstor<\/h2>\n<p><\/p>\n<p>Odpor\u00fa\u010dam pou\u017ei\u0165 syst\u00e9m Ubuntu, preto\u017ee pre\u0148 existuje <noindex><a rel=\"nofollow\" href=\"https:\/\/launchpad.net\/~linbit\/+archive\/ubuntu\/linbit-drbd9-stack\">pripraven\u00e9 PPA<\/a><\/noindex>:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">add-apt-repository ppa:linbit\/linbit-drbd9-stack\napt-get update<\/code><\/pre>\n<p><\/p>\n<p>Alebo Debian, kde Linstor mo\u017eno nain\u0161talova\u0165 z ofici\u00e1lneho repozit\u00e1ra pre Proxmox:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">wget -O- https:\/\/packages.linbit.com\/package-signing-pubkey.asc | apt-key add -\nPVERS=5 &amp;&amp; echo \"deb http:\/\/packages.linbit.com\/proxmox\/ proxmox-$PVERS drbd-9.0\" &gt; \n    \/etc\/apt\/sources.list.d\/linbit.list\napt-get update<\/code><\/pre>\n<p><\/p>\n<h5 id=\"controller\">Ovl\u00e1da\u010d<\/h5>\n<p><\/p>\n<p>Tu je to jednoduch\u00e9:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">apt-get install linstor-controller linstor-client\nsystemctl enable linstor-controller\nsystemctl start linstor-controller<\/code><\/pre>\n<p><\/p>\n<h5 id=\"storage-nody\">\u00dalo\u017en\u00e9 nody<\/h5>\n<p><\/p>\n<p>V s\u00fa\u010dasnosti je v jadre Linuxu dod\u00e1van\u00fd in-tree modul jadra <strong>DRBD8<\/strong>, bohu\u017eia\u013e, ten n\u00e1m nevyhovuje a mus\u00edme nain\u0161talova\u0165 <strong>DRBD9<\/strong>:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">apt-get install drbd-dkms<\/code><\/pre>\n<p><\/p>\n<p>Ako ukazuje prax, v\u00e4\u010d\u0161ina probl\u00e9mov vznik\u00e1 pr\u00e1ve t\u00fdm, \u017ee v syst\u00e9me je na\u010d\u00edtan\u00fd modul DRBD8, a nie DRBD9. Na\u0161\u0165astie to je \u013eahko overite\u013en\u00e9 vykonan\u00edm:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">modprobe drbd\ncat \/proc\/drbd<\/code><\/pre>\n<p><\/p>\n<p>Ak uvid\u00edte <strong>version: 9<\/strong> \u2014 znamen\u00e1 to, \u017ee je v\u0161etko v poriadku, ak <strong>version: 8<\/strong> \u2014 znamen\u00e1 to, \u017ee nie\u010do nefunguje a mus\u00edte podnikn\u00fa\u0165 \u010fal\u0161ie kroky na zistenie pr\u00ed\u010din.<\/p>\n<p><\/p>\n<p>Teraz nain\u0161talujeme <strong>linstor-satellite<\/strong> a <strong>drbd-utils<\/strong>:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">apt-get install linstor-satellite drbd-utils\nsystemctl enable linstor-satellite\nsystemctl start linstor-satellite<\/code><\/pre>\n<p><\/p>\n<h2 id=\"sozdanie-klastera\">Vytvorenie klastera<\/h2>\n<p><\/p>\n<p><strong>\u00dalo\u017en\u00e9 pooly a nody<\/strong><\/p>\n<p><\/p>\n<p>Ako backend zoberieme <strong>ThinLVM<\/strong>, preto\u017ee je to najjednoduch\u0161ie a podporuje sn\u00edmky.<br \/>\nNain\u0161talujte <strong>lvm2<\/strong>, ak ste tak e\u0161te neurobili, a po\u010fme vytvori\u0165 ThinLVM pool na v\u0161etk\u00fdch na\u0161ich \u00falo\u017en\u00fdch nod\u00e1ch:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">sudo vgcreate drbdpool \/dev\/sdb\nsudo lvcreate -L 800G -T drbdpool\/thinpool<\/code><\/pre>\n<p><\/p>\n<p>V\u0161etky \u010fal\u0161ie kroky m\u00f4\u017eu by\u0165 vykon\u00e1van\u00e9 priamo na ovl\u00e1da\u010di:<\/p>\n<p><\/p>\n<p>Prid\u00e1me na\u0161e nody:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">linstor node create node1 127.0.0.11\nlinstor node create node2 127.0.0.12\nlinstor node create node3 127.0.0.13<\/code><\/pre>\n<p><\/p>\n<p>Vytvor\u00edme \u00falo\u017en\u00e9 pooly:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">linstor storage-pool create lvmthin node1 data drbdpool\/thinpool\nlinstor storage-pool create lvmthin node2 data drbdpool\/thinpool\nlinstor storage-pool create lvmthin node3 data drbdpool\/thinpool<\/code><\/pre>\n<p><\/p>\n<p>Teraz skontrolujeme vytvoren\u00e9 pooly:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">linstor storage-pool list<\/code><\/pre>\n<p><\/p>\n<p>Ak bolo v\u0161etko vykonan\u00e9 spr\u00e1vne, mali by sme vidie\u0165 nie\u010do ako:<\/p>\n<p><\/p>\n<pre>+-------------------------------------------------------------------------------------------------------+\n| StoragePool | Node  | Driver   | PoolName          | FreeCapacity | TotalCapacity | SupportsSnapshots |\n|-------------------------------------------------------------------------------------------------------|\n| data        | node1 | LVM_THIN | drbdpool\/thinpool |       64 GiB |        64 GiB | true              |\n| data        | node2 | LVM_THIN | drbdpool\/thinpool |       64 GiB |        64 GiB | true              |\n| data        | node3 | LVM_THIN | drbdpool\/thinpool |       64 GiB |        64 GiB | true              |\n+-------------------------------------------------------------------------------------------------------+<\/pre>\n<p><\/p>\n<p><strong>DRBD zdroje<\/strong><\/p>\n<p><\/p>\n<p>Teraz sk\u00fasime vytvori\u0165 na\u0161u nov\u00fa DRBD zdroj:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">linstor resource-definition create myres\nlinstor volume-definition create myres 1G\nlinstor resource create myres --auto-place 2<\/code><\/pre>\n<p><\/p>\n<p>Skontrolujme vytvoren\u00e9 zdroje:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">linstor resource list <\/code><\/pre>\n<p><\/p>\n<pre>+------------------------------------------------------------------------------------------------------+\n| Node  | Resource | StoragePool | VolumeNr | MinorNr | DeviceName    | Allocated  | InUse  |    State |\n|------------------------------------------------------------------------------------------------------|\n| node1 | myres    | data        | 0        | 1084    | \/dev\/drbd1084 | 52 KiB     | Unused | UpToDate |\n| node2 | myres    | data        | 0        | 1084    | \/dev\/drbd1084 | 52 KiB     | Unused | UpToDate |\n+------------------------------------------------------------------------------------------------------+<\/pre>\n<p><\/p>\n<p>Skvele! \u2014 vid\u00edme, \u017ee zdroj bol vytvoren\u00fd na prv\u00fdch dvoch uzloch, m\u00f4\u017eeme tie\u017e sk\u00fasi\u0165 vytvori\u0165 diskless zdroj na tre\u0165om: <\/p>\n<p><\/p>\n<pre><code class=\"bash\">linstor resource create --diskless node3 myres<\/code><\/pre>\n<p><\/p>\n<p>Na uzloch v\u017edy n\u00e1jdete toto zariadenie ako <code>\/dev\/drbd1084<\/code> alebo <code>\/dev\/drbd\/by-res\/myres\/0<\/code><\/p>\n<p><\/p>\n<p>Takto funguje Linstor, m\u00f4\u017eete z\u00edska\u0165 viac inform\u00e1ci\u00ed z <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.linbit.com\/docs\/users-guide-9.0\/\">ofici\u00e1lnej dokument\u00e1cii<\/a><\/noindex>.<\/p>\n<p><\/p>\n<p>Teraz v\u00e1m poviem, ako ho integrova\u0165 s OpenNebulou<\/p>\n<p><\/p>\n<h2 id=\"nastroyka-opennebula\">Nastavenie OpenNebuly<\/h2>\n<p><\/p>\n<p>Nechcem sa hlboko zaobera\u0165 procesom nastavenia OpenNebuly, ke\u010f\u017ee v\u0161etky kroky s\u00fa podrobne pop\u00edsan\u00e9 v <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.opennebula.org\/stable\/deployment\/opennebula_installation\/index.html\">ofici\u00e1lnej dokument\u00e1cii<\/a><\/noindex>, na ktor\u00fa v\u00e1m odpor\u00fa\u010dam odk\u00e1za\u0165, poviem len o integr\u00e1cii OpenNebuly s Linstorom.<\/p>\n<p><\/p>\n<h5 id=\"linstor_un\">linstor_un<\/h5>\n<p><\/p>\n<p>Na vyrie\u0161enie tohto probl\u00e9mu som nap\u00edsal vlastn\u00fd ovl\u00e1da\u010d \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/OpenNebula\/addon-linstor_un\">linstor_un<\/a><\/noindex>, v s\u00fa\u010dasnosti je dostupn\u00fd ako plugin a mal by sa in\u0161talova\u0165 samostatne.<\/p>\n<p><\/p>\n<p>Cel\u00e1 in\u0161tal\u00e1cia prebieha na frontend OpenNebula uzloch a nevy\u017eaduje \u010fal\u0161ie akcie na compute uzloch.<\/p>\n<p><\/p>\n<p>Najprv sa mus\u00edme ubezpe\u010di\u0165, \u017ee m\u00e1me <strong>jq<\/strong> a <strong>linstor-client<\/strong>:<\/p>\n<p><\/p>\n<pre><code class=\"plaintext\">apt-get install jq linstor-client<\/code><\/pre>\n<p><\/p>\n<p>T\u00edm <code>linstor node list<\/code> by mal vyp\u00edsa\u0165 zoznam uzlov. V\u0161etky compute uzly OpenNebuly by mali by\u0165 pridan\u00e9 do klastera Linstor.<\/p>\n<p><\/p>\n<p>Stiahneme a nain\u0161talujeme plugin:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">curl -L https:\/\/github.com\/OpenNebula\/addon-linstor_un\/archive\/master.tar.gz | tar -xzvf - -C \/tmp\n\nmv \/tmp\/addon-linstor_un-master\/vmm\/kvm\/* \/var\/lib\/one\/remotes\/vmm\/kvm\/\n\nmkdir -p \/var\/lib\/one\/remotes\/etc\/datastore\/linstor_un\nmv \/tmp\/addon-linstor_un-master\/datastore\/linstor_un\/linstor_un.conf \/var\/lib\/one\/remotes\/etc\/datastore\/linstor_un\/linstor_un.conf\n\nmv \/tmp\/addon-linstor_un-master\/datastore\/linstor_un \/var\/lib\/one\/remotes\/datastore\/linstor_un\nmv \/tmp\/addon-linstor_un-master\/tm\/linstor_un \/var\/lib\/one\/remotes\/tm\/linstor_un\n\nrm -rf \/tmp\/addon-linstor_un-master<\/code><\/pre>\n<p><\/p>\n<p>Teraz je potrebn\u00e9 prida\u0165 ho do konfigur\u00e1cie OpenNebula, a to vykonan\u00edm jednoduch\u00fdch krokov, ktor\u00e9 s\u00fa op\u00edsan\u00e9 <strong><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/OpenNebula\/addon-linstor_un#update-onedconf\">tu<\/a><\/noindex><\/strong>.<\/p>\n<p><\/p>\n<p>Po tom, ako re\u0161tartujeme OpenNebula:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">systemctl restart opennebula<\/code><\/pre>\n<p><\/p>\n<p>A prid\u00e1me na\u0161e datastory, syst\u00e9mov\u00e9:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">cat &gt; system-ds.conf &lt;&lt;EOT\nNAME=&quot;linstor-system&quot;\nTYPE=&quot;SYSTEM_DS&quot;\nSTORAGE_POOL=&quot;data&quot;\nAUTO_PLACE=&quot;2&quot;\nCLONE_MODE=&quot;snapshot&quot;\nCHECKPOINT_AUTO_PLACE=&quot;1&quot;\nBRIDGE_LIST=&quot;node1 node2 node3&quot;\nTM_MAD=&quot;linstor_un&quot;\nEOT\n\nonedatastore create system-ds.conf<\/code><\/pre>\n<p><\/p>\n<p>A storage obrazov:<\/p>\n<p><\/p>\n<pre><code class=\"bash\">cat &gt; images-ds.conf &lt;&lt;EOT\nNAME=&quot;linstor-images&quot;\nTYPE=&quot;IMAGE_DS&quot;\nSTORAGE_POOL=&quot;data&quot;\nAUTO_PLACE=&quot;2&quot;\nBRIDGE_LIST=&quot;node1 node2 node3&quot;\nDISK_TYPE=&quot;BLOCK&quot;\nDS_MAD=&quot;linstor_un&quot;\nTM_MAD=&quot;linstor_un&quot;\nEOT\n\nonedatastore create images-ds.conf<\/code><\/pre>\n<p><\/p>\n<ul>\n<li>Parameter <code>AUTO_PLACE<\/code> zobrazuje po\u010det data-replik, ktor\u00e9 bud\u00fa vytvoren\u00e9 pre ka\u017ed\u00fd nov\u00fd obraz v OpenNebula.<\/li>\n<li>Parameter <code>CLONE_MODE<\/code> ud\u00e1va, ako presne bud\u00fa obrazy kl\u00f3novan\u00e9 pri vytv\u00e1ran\u00ed nov\u00fdch virtu\u00e1lnych strojov, <code>snapshot<\/code> \u2014 vytvor\u00ed snapshot obrazu a z tohto snapshotu sa spust\u00ed virtu\u00e1lny stroj, <code>copy<\/code> \u2014 vytvor\u00ed \u00fapln\u00fa k\u00f3piu obrazu pre ka\u017ed\u00fd virtu\u00e1lny stroj.<\/li>\n<li>V <code>BRIDGE_LIST<\/code> je odpor\u00fa\u010dan\u00e9 uvies\u0165 v\u0161etky uzly, ktor\u00e9 bud\u00fa pou\u017e\u00edvan\u00e9 na vykon\u00e1vanie klonovania obrazov. <\/li>\n<\/ul>\n<p><\/p>\n<p>\u00dapln\u00fd zoznam podporovan\u00fdch parametrov je uveden\u00fd v <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/OpenNebula\/addon-linstor_un#opennebula-configuration\">README<\/a><\/noindex> projektu.<\/p>\n<p><\/p>\n<p>Na tomto nastaven\u00ed je koniec, teraz m\u00f4\u017eeme na\u010d\u00edta\u0165 nejak\u00fd appliance z ofici\u00e1lneho <noindex><a rel=\"nofollow\" href=\"https:\/\/marketplace.opennebula.systems\/appliance\">OpenNebula Marketplace<\/a><\/noindex> a vytvori\u0165 z neho virtu\u00e1lne stroje.<\/p>\n<p><\/p>\n<p>Odkaz na projekt:<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/OpenNebula\/addon-linstor_un\">https:\/\/github.com\/OpenNebula\/addon-linstor_un<\/a><\/noindex><\/p>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/451186\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0435 \u0442\u0430\u043a \u0434\u0430\u0432\u043d\u043e \u0440\u0435\u0431\u044f\u0442\u0430 \u0438\u0437 LINBIT \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0438 \u0441\u0432\u043e\u0435 \u043d\u043e\u0432\u043e\u0435 SDS-\u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u2014 Linstor. \u042d\u0442\u043e \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0435 \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0435 \u0432 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u0435\u043d\u043d\u044b\u0435 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438: DRBD, LVM, ZFS. Linstor \u0441\u043e\u0447\u0435\u0442\u0430\u0435\u0442 \u0432 \u0441\u0435\u0431\u0435 \u043f\u0440\u043e\u0441\u0442\u043e\u0442\u0443 \u0438 \u0445\u043e\u0440\u043e\u0448\u043e \u043f\u0440\u043e\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u0443\u044e \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0443, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0438 \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0432\u043d\u0443\u0448\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u0432. \u0421\u0435\u0433\u043e\u0434\u043d\u044f \u044f \u0445\u043e\u0442\u0435\u043b \u0431\u044b \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u0442\u044c \u043f\u0440\u043e \u043d\u0435\u0433\u043e \u0447\u0443\u0442\u044c \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u0435\u0435 \u0438 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u044c \u043d\u0430\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u043e\u0441\u0442\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-33523","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041d\u0435 \u0442\u0430\u043a \u0434\u0430\u0432\u043d\u043e \u0440\u0435\u0431\u044f\u0442\u0430 \u0438\u0437 LINBIT.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link 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