[pve-devel] Restore from backup is not working properly

[Michael Rasmussen]

Hi all,

The restore from a backup is not working properly when dealing with
sparse volumes.

VM created with 4G disk sparse
Before backup:   Size 1.09G
Backup:          Size 527M
Restore:         Size 4.03G

This indicates that the resulting image is padded with 'NULLs' up to
configured disk size.

The same observation goes for cloning and moving
images (storage migrate). The size for the destination image always
reflects the size from configuration loosing sparse feature. Cloning
and storage migration could perhaps benefit from the option -S to
qemu-img (-S means create a sparse image during conversion).

-- 
Hilsen/Regards
Michael Rasmussen

Get my public GnuPG keys:
michael <at> rasmussen <dot> cc
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xD3C9A00E
mir <at> datanom <dot> net
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE501F51C
mir <at> miras <dot> org
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE3E80917
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