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A disk-only snapshot was taken without any space check, though its overlays grow as the guest writes and a later delete merges them down; a full pool pauses the guest and can leave the snapshot undeletable. Only a memory snapshot was checked, for the memory alone. Before a snapshot, each storage pool with a disk of the VM must have free a share of those disks' virtual size (10%, at least 1 GiB), and the pool of the memory file the VM's memory on top. Both values are on the Settings page (Snapshot Free Percent, Snapshot Free Min GiB; 0 turns a rule off, an invalid value keeps the default). The pools are refreshed first, and a failed refresh or an unreadable volume refuses the snapshot instead of skipping the check; a disk in no pool is not checked. Nothing is reserved: later writes can still fill a pool. |
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| .. | ||
| migrations | ||
| templates | ||
| tests | ||
| __init__.py | ||
| apps.py | ||
| context_processors.py | ||
| middleware.py | ||
| models.py | ||
| settings.py | ||
| views.py | ||