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bb8ccb050d
The storage pool code now attempts to disable COW by default on btrfs,
but management applications may wish to override this behaviour. Thus we
introduce a concept of storage pool features:
<features>
<cow state='yes|no'/>
</features>
If the <cow> feature policy is set, it will be enforced. It will always
return an hard error if COW cannot be explicitly set or unset.
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
11 lines
217 B
XML
11 lines
217 B
XML
<pool type='dir'>
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<name>vms</name>
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<uuid>751f8e7e-d2e9-463d-8ffe-d38f5e13a19b</uuid>
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<features>
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<cow state="yes"/>
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</features>
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<target>
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<path>/i/cant/believe/its/not/btrfs</path>
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</target>
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</pool>
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