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use for storing the instance disk files when using file storage as
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backend for instance disks.
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The ``--prealloc-wipe-disks`` sets a cluster wide configuration
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value for wiping disks prior to allocation. This increases security
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on instance level as the instance can't access untouched data from
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it's underlying storage.
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The ``--prealloc-wipe-disks`` sets a cluster wide configuration value
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for wiping disks prior to allocation and size changes (``gnt-instance
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grow-disk``). This increases security on instance level as the instance
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can't access untouched data from its underlying storage.
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The ``--enabled-hypervisors`` option allows you to set the list of
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hypervisors that will be enabled for this cluster. Instance

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