I wonder if this is a problem for Proxmox? Isn't "block migration" used?
-> https://wiki.qemu.org/ChangeLog/9.2
-> https://wiki.qemu.org/ChangeLog/9.1
Code:
New deprecated options and features
(...)
- "zero-blocks" migration capability (only used by block migration, which was removed in 9.1)
Code:
Removed features and incompatible changes
(...)
The "block migration" options to the migrate commands ("blk" and "inc" for QMP, "-b"/"-i" for the human monitor) have been removed; guest management software
such as libvirt is able to perform block migration more efficiently using block jobs and NBD devices.
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