This is pretty stable, albeit naturally an advanced and new technique.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
VM Backup Fleecing
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VM Backup Fleecing
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-WARNING: Backup fleecing is still being worked on (also in upstream QEMU) and is
-currently only a technology preview.
-
When a backup for a VM is started, QEMU will install a "copy-before-write"
filter in its block layer. This filter ensures that upon new guest writes, old
data still needed for the backup is sent to the backup target first. The guest
When a backup for a VM is started, QEMU will install a "copy-before-write"
filter in its block layer. This filter ensures that upon new guest writes, old
data still needed for the backup is sent to the backup target first. The guest