On Wed, Nov 21, 2018, 17:28 Gianluca Cecchi <gianluca.cecchi@gmail.com wrote:

Hello,

I have a qcow2 image file with these details with "qemu-img info" command:

file format: qcow2

virtual size: 66G (70866960384 bytes)

disk size: 1.5G

cluster_size: 65536

Format specific information:

    compat: 0.10

I'm on 4.2.6 and If I try to upload as a disk from the GUI it seems it tries to upload full 66Gb, not 1.5Gb...

You hit

https://bugzilla.redhat.com/1627032

And it goes paused after the probably transferred 1.5Gb...

Also, I would like it to be qcow2 1.1 and not 0.10

I have run:

qemu-img convert -O qcow2 -o compat=1.1 source.qc2 source.qc2_v3

This works, but you can use amend instead of convert.

You can also upload the image as is, oVirt amend the image to use 1.1 after the upload.

and now I have

file format: qcow2

virtual size: 66G (70866960384 bytes)

disk size: 4.2G

cluster_size: 65536

Format specific information:

    compat: 1.1

    lazy refcounts: false

    refcount bits: 16

    corrupt: false

Is it expected to pass from 1.5Gb to 4.2Gb after conversion?

The original image probaly had some compressed clusters. Converting uncompress all clusters.

Anyway also in 1.1 format, if I try to upload It keeps sending the whole 66Gb and now it goes in paused after about 1 minute (at rate of 60MB/s) that lets me think that once arrived at the 4.2Gb size it has problems...

Same issue

Any hint?

Update to 4.2.7, or upload using the SDK:

https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/upload_disk.py

Nir

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