On Mon, Nov 23, 2015 at 15:04:55 +0300, Vasiliy Tolstov wrote:
2015-11-23 14:43 GMT+03:00 Peter Krempa <pkrempa(a)redhat.com>:
> If you insist on using --live you also have to specify --memspec to
> point to a location where the memory snapshot is saved. Btw, --live and
> --disk-only are basically mutually exclusive since --disk-only implies
> that the memory state should not be saved, whereas --live is used when
> the memory state is saved.
>
> Additionally a disk-only snapshot is always considered "live" since it
> usually doesn't require pausing of the VM.
So, i'm try to modify command to virsh snapshot-create-as 40219
--no-metadata --disk-only --diskspec sda,file=/test.raw
but also have error:
error: unsupported configuration: external snapshot file for disk sda
already exists and is not a block device: /test.raw
The file should not exist prior to the snapshot. If you want to
pre-create it (with correct size and format), you need to specify
--reuse-external in that case. Virsh manual already documents that:
If --reuse-external is specified, and the snapshot XML requests an
external snapshot with a destination of an existing file, then the
destination must exist and be pre-created with correct format and
metadata. The file is then reused; otherwise, a snapshot is refused
to avoid losing contents of the existing files.