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Tweaks to dirty bitmap / backup handling - #4206
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Oct 15, 2026
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Didnât review the RBD stuff, so someone more experienced in this should take a look
Independent volumes may be shared with other instances and are reachable through their own storage volume endpoint, so the instance export no longer puts an overlay on them. Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Dependent block volumes get the same qcow2 metadata image as the root disk so they can hold persistent dirty bitmaps. The image is dropped when the volume is detached so a reused device name doesn't inherit stale bitmaps. Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Root and dependent disks on Ceph are now attached through the qcow2 metadata image with the RBD image as its data file, so persistent dirty bitmaps work there too. The image was created for the root disk before but then bypassed in favor of a direct RBD attachment. Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
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