Multi-Attach

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Volume multi-attach enables simultaneously attaching a volume to multiple hosts/servers.

You should ensure that a multi-attach or clustered file system is used on the volumes. Otherwise there could be a high probability of data corruption.

To attach a volume to multiple server instances (VMs), you will need to create a ‘multi-attach’ volume type, and then create a volume of type as multi-attach. You should ensure that you have the right role and policy settings before performing this operation.

The only way to create a multi-attach volume is by creating a multi-attach volume type and using it to create the volume.

Bash
    
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openstack volume type create multiattach_1openstack volume type set --property multiattach="<is> True"  multiattach_1openstack volume create --size 10 --type multiattach_1 my-volume_1
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