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HowtoOCFS2.md
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HowtoOCFS2.md
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# Howto OCFS2
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Il est notamment nécessaire de disposer d'un FS clusterisé quand FS est monté à deux endroits différents, ce qui n'est pas possible avec un FS standard tel que ext4.
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### Installation
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~~~
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# apt install ocfs2-tools
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~~~
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Configurer OCFS dans /etc/ocfs2/cluster.conf
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~~~
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node:
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ip_port = 7777
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ip_address = 192.0.2.1
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number = 0
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name = kvm1
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cluster = ocfs2
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node:
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ip_port = 7777
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ip_address = 192.0.2.2
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number = 1
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name = kvm2
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cluster = ocfs2
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cluster:
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node_count = 2
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name = ocfs2
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~~~
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Formater le device drbd0 sur une seule machine.
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~~~
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# mkfs.ocfs2 /dev/drbd/by-res/r0
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~~~
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Monter la partition sur les deux machines.
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~~~
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# /etc/init.d/o2cb online
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# mount /dev/drbd/by-res/r0 /virtualmachines
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~~~
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### Erreur "Unable to access cluster service while trying initialize cluster"
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Si vous avez une erreur "Starting Oracle Cluster File System (OCFS2) mount.ocfs2: Unable to access cluster service while trying initialize cluster" :
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~~~
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# /etc/init.d/o2cb online
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# /etc/init.d/ocfs2 restart
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~~~
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