{"id":82494,"date":"2020-05-22T01:42:24","date_gmt":"2020-05-21T23:42:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/ovirt-za-2-chasa-chast-2-ustanovka-menedzhera-i-hostov"},"modified":"2020-05-22T01:42:24","modified_gmt":"2020-05-21T23:42:24","slug":"ovirt-za-2-chasa-chast-2-ustanovka-menedzhera-i-hostov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/ovirt-za-2-chasa-chast-2-ustanovka-menedzhera-i-hostov","title":{"rendered":"oVirt p\u00e5 2 timer. Del 2. Installation af manager og hosts.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Denne artikel er den n\u00e6ste i r\u00e6kken om oVirt, begyndelsen <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/501166\/\">her<\/a><\/noindex>.<\/p>\n<h2>Artikler<\/h2>\n<p><\/p>\n<ol>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/501166\/\">Introduktion<\/a><\/noindex><\/li>\n<li>Installation af manager (ovirt-engine) og hypervisorer (hosts) - Vi er her<\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/502178\/\">Yderligere indstillinger<\/a><\/noindex><\/li>\n<\/ol>\n<p>\nLad os se p\u00e5 sp\u00f8rgsm\u00e5lene omkring den indledende installation af ovirt-engine og ovirt-host komponenterne.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nFor mere detaljeret information om installationsprocesserne kan man altid se i <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ovirt.org\/documentation\/\">dokumentationen<\/a><\/noindex>.<\/p>\n<h2>Indhold<\/h2>\n<p><\/p>\n<ol>\n<li><noindex><a rel=\"nofollow\" href=\"#setup-engine\">Installation af ovirt-engine<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"#setup-host\">Installation af ovirt-host<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"#add-host\">Tilf\u00f8jelse af node til oVirt<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"#host-nic\">Konfiguration af netv\u00e6rksinterface<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"#host-fc\">Konfiguration af FC<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"#ovirt-fcoe\">Konfiguration af FCoE<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"#host-iso\">ISO billedlager<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"#1stVM\">Den f\u00f8rste VM<\/a><\/noindex><\/li>\n<\/ol>\n<p>\n<noindex><a rel=\"nofollow\" name=\"setup-engine\"><\/a><\/noindex><\/p>\n<h2>Installation af ovirt-engine<\/h2>\n<p>\nFor Engine er de minimale krav 2 kerner \/ 4 GB RAM \/ 25 GB lager. De anbefalede krav er fra 4 kerner \/ 16 GB RAM \/ 50 GB lager. Vi bruger Standalone Manager versionen, n\u00e5r engine k\u00f8rer p\u00e5 en dedikeret fysisk eller virtuel maskine uden for den administrerede klynge. For vores installation vil vi tage en virtuel maskine, f.eks. p\u00e5 en selvst\u00e6ndig ESXi*. Det er praktisk at bruge automatiseringsv\u00e6rkt\u00f8jer til implementering eller kloning fra en tidligere forberedt skabelon eller kickstart-installation.<\/p>\n<p><i>*Note: For produktionssystemer er dette en d\u00e5rlig id\u00e9, da manageren k\u00f8rer uden backup og bliver et flaskehalsproblem. I dette tilf\u00e6lde er det bedre at overveje en Self-hosted Engine mulighed.<\/i><\/p>\n<p>Hvis n\u00f8dvendigt, er proceduren for konvertering fra Standalone til Self Hosted detaljeret beskrevet i <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ovirt.org\/documentation\/migrating_from_a_standalone_manager_to_a_self-hosted_engine\/#Migration_overview\">dokumentationen<\/a><\/noindex>. Specifikt skal hosten give kommandoen reinstall med st\u00f8tte for Hosted Engine.<\/p>\n<p>P\u00e5 VM'en installeres CentOS 7 i minimal konfiguration, herefter opdaterer og genstarter vi systemet:<\/p>\n<pre><code class=\"bash\">$ sudo yum update -y &amp;&amp; sudo reboot<\/code><\/pre>\n<p>\nFor den virtuelle maskine er det nyttigt at installere g\u00e6steagenten:<\/p>\n<pre><code class=\"bash\">$ sudo yum install open-vm-tools<\/code><\/pre>\n<p>\ntil VMware ESXi hosts, eller for oVirt:<\/p>\n<pre><code class=\"bash\">$ sudo yum install ovirt-guest-agent<\/code><\/pre>\n<p>\nVi tilslutter repositoryet og installerer manageren:<\/p>\n<pre><code class=\"bash\">$ sudo yum install https:\/\/resources.ovirt.org\/pub\/yum-repo\/ovirt-release43.rpm\n$ sudo yum install ovirt-engine\n<\/code><\/pre>\n<p>\nBasisops\u00e6tning:<\/p>\n<pre><code class=\"bash\">$ sudo engine-setup<\/code><\/pre>\n<p>\nI de fleste tilf\u00e6lde er de valgte standardindstillinger tilstr\u00e6kkelige, for at bruge dem automatisk kan man starte konfigurationen med n\u00f8glen:<\/p>\n<pre><code class=\"bash\">$ sudo engine-setup --accept-defaults<\/code><\/pre>\n<p>\nNu kan vi oprette forbindelse til vores nye engine p\u00e5 adressen <noindex><a rel=\"nofollow\" href=\"https:\/\/ovirt.lab.example.com\">ovirt.lab.example.com<\/a><\/noindex>. Her er der stadig tomt, s\u00e5 lad os g\u00e5 videre med installationen af hypervisorer.<br \/>\n<noindex><a rel=\"nofollow\" name=\"setup-host\"><\/a><\/noindex><\/p>\n<h2>Installation af ovirt-host<\/h2>\n<p>\nP\u00e5 den fysiske host installereres CentOS 7 i minimal konfiguration, derefter tilslutter vi repositoryet, opdaterer og genstarter systemet:<\/p>\n<pre><code class=\"bash\">$ sudo yum install https:\/\/resources.ovirt.org\/pub\/yum-repo\/ovirt-release43.rpm\n$ sudo yum update -y &amp;&amp; sudo reboot\n<\/code><\/pre>\n<p>\n<i>Note: Det er praktisk at bruge automatiseringsv\u00e6rkt\u00f8jer til implementering eller kickstart-installation.<\/i><\/p>\n<p>                        <b class=\"spoiler_title\">Eksempel p\u00e5 kickstart fil<\/b><br \/>\n                        Opm\u00e6rksomhed! <b>Eksisterende partitioner fjernes automatisk!<\/b> V\u00e6r forsigtig!<\/p>\n<pre><code class=\"plaintext\"># System authorization information\nauth --enableshadow --passalgo=sha512\n# Use CDROM installation media\ncdrom\n# Use graphical install\ngraphical\n# Run the Setup Agent on first boot\nfirstboot --enable\nignoredisk --only-use=sda\n# Keyboard layouts\nkeyboard --vckeymap=us --xlayouts='us','ru' --switch='grp:alt_shift_toggle'\n# System language\nlang ru_RU.UTF-8\n\n# Network information\nnetwork  --bootproto=dhcp --device=ens192 --ipv6=auto --activate\nnetwork  --hostname=kvm01.lab.example.com\n\n# Root password 'monteV1DE0'\nrootpw --iscrypted $6$6oPcf0GW9VdmJe5w$6WBucrUPRdCAP.aBVnUfvaEu9ozkXq9M1TXiwOm41Y58DEerG8b3Ulme2YtxAgNHr6DGIJ02eFgVuEmYsOo7.\/\n# User password 'metroP0!is'\nuser --name=mgmt --groups=wheel --iscrypted --password=$6$883g2lyXdkDLbKYR$B3yWx1aQZmYYi.aO10W2Bvw0Jpkl1upzgjhZr6lmITTrGaPupa5iC3kZAOvwDonZ\/6ogNJe\/59GN5U8Okp.qx.\n# System services\nservices --enabled=&quot;chronyd&quot;\n# System timezone\ntimezone Europe\/Moscow --isUtc\n# System bootloader configuration\nbootloader --append=&quot; crashkernel=auto&quot; --location=mbr --boot-drive=sda\n# Partition clearing information\nclearpart --all\n# Disk partitioning information\npart \/boot --fstype xfs --size=1024 --ondisk=sda  --label=boot\npart pv.01 --size=45056 --grow\nvolgroup HostVG pv.01 --reserved-percent=20\nlogvol swap --vgname=HostVG --name=lv_swap --fstype=swap --recommended\nlogvol none --vgname=HostVG --name=HostPool --thinpool --size=40960 --grow\nlogvol \/ --vgname=HostVG --name=lv_root --thin --fstype=ext4 --label=&quot;root&quot; --poolname=HostPool --fsoptions=&quot;defaults,discard&quot; --size=6144 --grow\nlogvol \/var --vgname=HostVG --name=lv_var --thin --fstype=ext4 --poolname=HostPool --fsoptions=&quot;defaults,discard&quot; --size=16536\nlogvol \/var\/crash --vgname=HostVG --name=lv_var_crash --thin --fstype=ext4 --poolname=HostPool --fsoptions=&quot;defaults,discard&quot; --size=10240\nlogvol \/var\/log --vgname=HostVG --name=lv_var_log --thin --fstype=ext4 --poolname=HostPool --fsoptions=&quot;defaults,discard&quot; --size=8192\nlogvol \/var\/log\/audit --vgname=HostVG --name=lv_var_audit --thin --fstype=ext4 --poolname=HostPool --fsoptions=&quot;defaults,discard&quot; --size=2048\nlogvol \/home --vgname=HostVG --name=lv_home --thin --fstype=ext4 --poolname=HostPool --fsoptions=&quot;defaults,discard&quot; --size=1024\nlogvol \/tmp --vgname=HostVG --name=lv_tmp --thin --fstype=ext4 --poolname=HostPool --fsoptions=&quot;defaults,discard&quot; --size=1024\n\n%packages\n@^minimal\n@core\nchrony\nkexec-tools\n\n%end\n\n%addon com_redhat_kdump --enable --reserve-mb='auto'\n\n%end\n\n%anaconda\npwpolicy root --minlen=6 --minquality=1 --notstrict --nochanges --notempty\npwpolicy user --minlen=6 --minquality=1 --notstrict --nochanges --emptyok\npwpolicy luks --minlen=6 --minquality=1 --notstrict --nochanges --notempty\n%end\n# Reboot when the install is finished.\nreboot --eject\n<\/code><\/pre>\n<p>\nGem denne fil, f.eks. p\u00e5 <noindex><a rel=\"nofollow\" href=\"ftp:\/\/ftp.example.com\/pub\/labkvm.cfg\">ftp.example.com\/pub\/labkvm.cfg<\/a><\/noindex>. For using the script when starting the OS installation, select the option 'Install CentOS 7', enable editing mode (Tab key), and at the end (with a space, without quotes) add <\/p>\n<pre><code class=\"plaintext\">' inst.ks=ftp:\/\/ftp.example.com\/pub\/labkvm.cfg'<\/code><\/pre>\n<p>.<br \/>\nInstallationsscriptet fjerner eksisterende partitioner p\u00e5 \/dev\/sda, opretter nye efter <noindex><a rel=\"nofollow\" href=\"https:\/\/access.redhat.com\/documentation\/en-us\/red_hat_virtualization\/4.2\/html\/installation_guide\/advanced_rhvh_install\">anbefalingerne fra udvikleren<\/a><\/noindex> (det er nemt at se dem efter installationen med kommandoen lsblk). V\u00e6rtens navn s\u00e6ttes som kvm01.lab.example.com (det kan \u00e6ndres efter installationen med kommandoen hostnamectl set-hostname kvm03.lab.example.com), IP-adressen tilf\u00f8jes automatisk, tidszonen s\u00e6ttes til Moskva, og der er tilf\u00f8jet st\u00f8tte til russisk.<\/p>\n<p>Adgangskoden til root-brugeren: monteV1DE0, adgangskoden til mgmt-brugeren: metroP0!is.<br \/>\n<b>V\u00e6r opm\u00e6rksom! Eksisterende partitioner fjernes automatisk! V\u00e6r forsigtig!<\/b><\/p>\n<p>Gentag (eller udf\u00f8r parallelt) p\u00e5 alle v\u00e6rter. Fra t\u00e6nding af den 'tomme' server til klar tilstand, med to lange opstarter, tager det cirka 20 minutter.<br \/>\n<noindex><a rel=\"nofollow\" name=\"add-host\"><\/a><\/noindex><\/p>\n<h2>Tilf\u00f8jelse af node til oVirt<\/h2>\n<p>\nG\u00f8res meget enkelt:<\/p>\n<p>Compute \u2192 Hosts \u2192 New \u2192\u2026<\/p>\n<p>I guiden er felterne Name (visningsnavn, f.eks. kvm03), Hostname (FQDN, f.eks. kvm03.lab.example.com) og sektionen Authentication obligatoriske \u2014 <i>bruger root (u\u00e6ndret)<\/i> \u2014 adgangskode eller SSH Public Key.<\/p>\n<p>After clicking the button <b>Ok<\/b> Du vil modtage en meddelelse <i>\u00abDu har ikke konfigureret str\u00f8madministration for denne v\u00e6rt. Er du sikker p\u00e5, at du vil forts\u00e6tte?\u00bb<\/i>. Det er normalt \u2014 vi vil se p\u00e5 str\u00f8mstyringen senere, efter at v\u00e6rt tilslutningen har v\u00e6ret succesfuld. Men hvis maskinerne, som v\u00e6rterne er installeret p\u00e5, ikke underst\u00f8tter styring (IPMI, iLO, DRAC osv.), anbefaler jeg at deaktivere den: Compute \u2192 Clusters \u2192 Default \u2192 Edit \u2192 Fencing Policy \u2192 Enable fencing, fjern markeringen.<\/p>\n<p>Hvis v\u00e6rt ikke har tilsluttet oVirt-repositoriet, vil installationen mislykkes, men intet problem \u2014 tilf\u00f8j det, og tryk derefter Install -&gt; Reinstall.<\/p>\n<p>Tilslutning af v\u00e6rt tager ikke mere end 5-10 minutter.<br \/>\n<noindex><a rel=\"nofollow\" name=\"host-nic\"><\/a><\/noindex><\/p>\n<h3>Konfiguration af netv\u00e6rksinterface<\/h3>\n<p>\nDa vi bygger et fejltolerant system, skal netv\u00e6rksforbindelsen ogs\u00e5 sikre en backup-forbindelse, hvilket g\u00f8res p\u00e5 fanen Compute \u2192 Hosts \u2192 <i>V\u00c6RT<\/i> \u2192 Network Interfaces \u2014 Ops\u00e6t v\u00e6rtens netv\u00e6rk.<\/p>\n<p>Afh\u00e6ngigt af mulighederne i dit netv\u00e6rksudstyr og arkitekturmetoderne kan der v\u00e6re forskellige muligheder. Det er bedst at forbinde til en top-of-rack switchstak, s\u00e5 netv\u00e6rksadgangen ikke afbrydes ved fejl p\u00e5 \u00e9n. Lad os tage et eksempel med en aggregeret LACP-forbindelse. For at konfigurere den aggregerede forbindelse skal du \"tage\" den 2. uudnyttede adapter med musen og \"f\u00f8re\" den til den 1. Den vil \u00e5bne et vindue <b>Opret ny bond<\/b>, hvor LACP (Mode 4, Dynamisk linkaggregering, 802.3ad) er valgt som standard. P\u00e5 switchesiden udf\u00f8res den s\u00e6dvanlige konfiguration af LACP-gruppen. Hvis det ikke er muligt at opbygge en switchstak, kan Active-Backup-tilstand (Mode 1) anvendes. Vi vil se p\u00e5 VLAN-indstillingerne i n\u00e6ste artikel, mens vi vil uddybe anbefalingerne til netv\u00e6rkskonfiguration i dokumentet <noindex><a rel=\"nofollow\" href=\"https:\/\/access.redhat.com\/documentation\/en-us\/red_hat_virtualization\/4.3\/html-single\/planning_and_prerequisites_guide\/index#networking-recommendations\">Planl\u00e6gnings- og foruds\u00e6tningsguide<\/a><\/noindex>.<br \/>\n<noindex><a rel=\"nofollow\" name=\"host-fc\"><\/a><\/noindex><\/p>\n<h2>Konfiguration af FC<\/h2>\n<p>\nFibre Channel (FC) underst\u00f8ttes \"out of the box\", og det medf\u00f8rer ingen problemer at bruge. Vi vil ikke d\u00e6kke konfigurationen af lagringsnetv\u00e6rket, som inkluderer konfigurationen af lagringssystemer og zonering af fabric switches i forbindelse med konfigurationen af oVirt.<br \/>\n<noindex><a rel=\"nofollow\" name=\"ovirt-fcoe\"><\/a><\/noindex><\/p>\n<h2>Konfiguration af FCoE<\/h2>\n<p>\nFCoE har efter min mening ikke opn\u00e5et omfattende udbredelse i lagringsnetv\u00e6rk, men bruges ofte p\u00e5 servere som \"den sidste mil\", f.eks. i HPE Virtual Connect.<\/p>\n<p>                        <b class=\"spoiler_title\">Konfiguration af FCoE kr\u00e6ver nogle f\u00e5 enkle trin.<\/b><\/p>\n<h4>Ops\u00e6tning af FCoE-motor<\/h4>\n<p>\nArtikel p\u00e5 Red Hat-webstedet <noindex><a rel=\"nofollow\" href=\"https:\/\/access.redhat.com\/documentation\/en-us\/red_hat_virtualization\/4.3\/html\/administration_guide\/how_to_set_up_rhvm_to_use_fcoe\">B.3. S\u00e5dan konfigureres Red Hat Virtualization Manager til at bruge FCoE<br \/>\nP\u00e5 manageren<\/a><\/noindex>, tilf\u00f8jer vi n\u00f8glen til manageren med f\u00f8lgende kommando og genstarter den:<\/p>\n<pre><code class=\"bash\">\n$ sudo engine-config -s UserDefinedNetworkCustomProperties='fcoe=^((enable|dcb|auto_vlan)=(yes|no),?)*$'\n$ sudo systemctl restart ovirt-engine.service\n<\/code><\/pre>\n<p><\/p>\n<h4>Ops\u00e6t Node FCoE<\/h4>\n<p>\nP\u00e5 oVirt-v\u00e6rter skal der installeres <\/p>\n<pre><code class=\"bash\">$ sudo yum install vdsm-hook-fcoe<\/code><\/pre>\n<p>\nDerefter den s\u00e6dvanlige konfiguration af FCoE, artikel p\u00e5 Red Hat: <noindex><a rel=\"nofollow\" href=\"https:\/\/access.redhat.com\/documentation\/en-us\/red_hat_enterprise_linux\/7\/html\/storage_administration_guide\/fcoe-config\">25.5. Konfiguration af en Fibre Channel over Ethernet-gr\u00e6nseflade<\/a><\/noindex>.<\/p>\n<p>For Broadcom CNA ser vi desuden p\u00e5 <noindex><a rel=\"nofollow\" href=\"https:\/\/support.hpe.com\/hpesc\/public\/docDisplay?docId=c04236477\">Brugervejledning til FCoE-konfiguration for Broadcom-baserede adaptere<\/a><\/noindex>.<\/p>\n<p>Sikre, at pakkerne er installeret (de er allerede inkluderet i minimal):<\/p>\n<pre><code class=\"bash\">$ sudo yum install fcoe-utils lldpad<\/code><\/pre>\n<p>\nDerefter selve konfigurationen (i stedet for ens3f2 og ens3f3 inds\u00e6ttes de navne p\u00e5 CNA, der er tilsluttet lagringsnetv\u00e6rket):<\/p>\n<pre><code class=\"bash\">$ sudo cp \\\/etc\\\/fcoe\\\/cfg-ethx \\\/etc\\\/fcoe\\\/cfg-ens3f2\n$ sudo cp \\\/etc\\\/fcoe\\\/cfg-ethx \\\/etc\\\/fcoe\\\/cfg-ens3f3\n$ sudo vim \\\/etc\\\/fcoe\\\/cfg-ens3f2\n$ sudo vim \\\/etc\\\/fcoe\\\/cfg-ens3f3\n<\/code><\/pre>\n<p>\n<b>Det er vigtigt<\/b>: hvis netv\u00e6rksgr\u00e6nsefladen underst\u00f8tter DCB\\\/DCBX hardwarem\u00e6ssigt, skal parameteren DCB_REQUIRED s\u00e6ttes til no.<\/p>\n<p>DCB_REQUIRED=\"yes\" \u2192 <b>#<\/b>DCB_REQUIRED=\"yes\"<\/p>\n<p>Derefter skal vi s\u00f8rge for, at adminStatus er slukket p\u00e5 alle gr\u00e6nseflader, ogs\u00e5 dem uden aktiveret FCoE:<\/p>\n<pre><code class=\"bash\">$ sudo lldptool set-lldp -i ens3f0 adminStatus=disabled\n...\n$ sudo lldptool set-lldp -i ens3f3 adminStatus=disabled\n<\/code><\/pre>\n<p>\nHvis der er andre netv\u00e6rksgr\u00e6nseflader, kan LLDP aktiveres:<\/p>\n<pre><code class=\"bash\">$ sudo systemctl start lldpad\n$ sudo systemctl enable lldpad\n<\/code><\/pre>\n<p>\nSom tidligere n\u00e6vnt, hvis der anvendes hardware DCB\/DCBX, skal DCB_REQUIRED v\u00e6re aktiveret i <b>nej<\/b> og dette trin kan springes over.<\/p>\n<pre><code class=\"bash\">$ sudo dcbtool sc ens3f2 dcb on\n$ sudo dcbtool sc ens3f3 dcb on\n$ sudo dcbtool sc ens3f2 app:fcoe e:1\n$ sudo dcbtool sc ens3f3 app:fcoe e:1\n$ sudo ip link set dev ens3f2 up\n$ sudo ip link set dev ens3f3 up\n$ sudo systemctl start fcoe\n$ sudo systemctl enable fcoe\n<\/code><\/pre>\n<p>\nFor netv\u00e6rksinterfaces, tjek om automatisk opstart er aktiveret:<\/p>\n<pre><code class=\"bash\">$ sudo vim \/etc\/sysconfig\/network-scripts\/ifcfg-ens3f2\n$ sudo vim \/etc\/sysconfig\/network-scripts\/ifcfg-ens3f3\n<\/code><\/pre>\n<p><\/p>\n<pre><code class=\"plaintext\">ONBOOT=yes<\/code><\/pre>\n<p>\nVis de konfigurerede FCoE interfaces, kommandoens output skal ikke v\u00e6re tomt.<\/p>\n<pre><code class=\"bash\">$ sudo fcoeadm -i<\/code><\/pre>\n<p>\nDen efterf\u00f8lgende konfiguration af FCoE udf\u00f8res som for almindelig FC.<\/p>\n<p>Derefter f\u00f8lger konfigurationen af systemer og lagringsnetv\u00e6rk \u2014 zonering, SAN-v\u00e6rter, oprettelse og pr\u00e6sentation af volumener\/LUN'er, hvorefter lageret kan tilsluttes til ovirt-v\u00e6rter: Storage \u2192 Domains \u2192 New Domain.<\/p>\n<p>Domain Function lader vi st\u00e5 som Data, Storage Type \u2014 Fibre Channel, Host \u2014 vilk\u00e5rlig, navn \u2014 f.eks. storNN-volMM.<\/p>\n<p>Din lagringssystem accepterer helt sikkert tilslutning af ikke kun redundante baner, men ogs\u00e5 load balancing. Mange moderne systemer kan optimalt overf\u00f8re data gennem alle baner ligeligt (ALUA active\/active).<\/p>\n<p>For at aktivere alle baner i aktiv tilstand, skal multihoming konfigureres, dette vil blive behandlet i de n\u00e6ste artikler.<\/p>\n<p>Konfiguration af NFS og iSCSI udf\u00f8res p\u00e5 lignende m\u00e5de.<br \/>\n<noindex><a rel=\"nofollow\" name=\"host-iso\"><\/a><\/noindex><\/p>\n<h3>ISO billedlager<\/h3>\n<p>\nFor at installere OS kr\u00e6ves deres installationsfiler, som oftest er tilg\u00e6ngelige som ISO-billeder. Man kan bruge den indbyggede sti, men for at arbejde med billeder i oVirt er der udviklet en s\u00e6rlig type lager \u2014 ISO, som kan rettes mod en NFS-server. Vi tilf\u00f8jer det:<\/p>\n<p>Storage \u2192 Domains \u2192 New Domain,<br \/>\nDomain Function \u2192 ISO, <br \/>\nExport Path \u2014 f.eks. mynfs01.example.com:\/exports\/ovirt-iso (p\u00e5 tidspunktet for tilslutning skal mappen v\u00e6re tom, og manageren skal have mulighed for at skrive til den),<br \/>\nName \u2014 f.eks. mynfs01-iso.<\/p>\n<p>For at lagre billeder vil manageren oprette en struktur <br \/>\n\/exports\/ovirt-iso<b>\/&lt;some UUID&gt;\/images\/11111111-1111-1111-1111-111111111111\/<\/b><\/p>\n<p>Hvis der allerede findes ISO-billeder p\u00e5 vores NFS-server, er det praktisk at linke dem til denne mappe i stedet for at kopiere filerne for at spare plads.<br \/>\n<noindex><a rel=\"nofollow\" name=\"1stVM\"><\/a><\/noindex><\/p>\n<h2>Den f\u00f8rste VM<\/h2>\n<p>\nP\u00e5 dette tidspunkt kan den f\u00f8rste virtuelle maskine allerede oprettes, installeres med et OS og applikationssoftware.<\/p>\n<p>Compute \u2192 Virtual Machines \u2192 New<\/p>\n<p>For den nye maskine angiv navn (Name), opret disk (Instance Images \u2192 Create) og tilslut netv\u00e6rksinterface (Instantiate VM network interfaces by picking a vNIC profile \u2192 v\u00e6lg den eneste ovirtmgmt i listen for nu).<\/p>\n<p>P\u00e5 klientsiden kr\u00e6ves en moderne browser og <noindex><a rel=\"nofollow\" href=\"https:\/\/www.spice-space.org\/download.html\">SPICE-klient<\/a><\/noindex> for interaktion med konsollen.<\/p>\n<p>Den f\u00f8rste maskine er blevet startet. For at systemet kan fungere fuldt ud, kr\u00e6ves der dog en r\u00e6kke yderligere indstillinger, som vi forts\u00e6tter med i de kommende artikler.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/501182\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u042d\u0442\u0430 \u0441\u0442\u0430\u0442\u044c\u044f \u2014 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0430\u044f \u0432 \u0446\u0438\u043a\u043b\u0435 \u043f\u043e oVirt, \u043d\u0430\u0447\u0430\u043b\u043e \u0437\u0434\u0435\u0441\u044c. \u0421\u0442\u0430\u0442\u044c\u0438 \u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u0423\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0430 (ovirt-engine) \u0438 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u043e\u0432 (hosts) \u2014 \u041c\u044b \u0437\u0434\u0435\u0441\u044c \u0414\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u0418\u0442\u0430\u043a, \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0432\u043e\u043f\u0440\u043e\u0441\u044b \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u043e\u0439 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 ovirt-engine \u0438 ovirt-host. \u0411\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u044b \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u0432\u0441\u0435\u0433\u0434\u0430 \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c \u0432 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0438. \u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435 \u0423\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 ovirt-engine \u0423\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 ovirt-host \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0443\u0437\u043b\u0430 \u0432 oVirtN \u041d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 \u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u041d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 FC [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-82494","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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