V2V Migration | Mixed Volumes VHD and QCOW

[tsukraw]

Hey guys,

With qcow support hot off the press we are attempted a V2V with a 2+ TB volume.

The system that we are testing with the system disk is less than 2TB in size and it is showing up as vhd and the data volume is greater than 2TB so it shows qcow

The issue that we are running into is the system volume never transfers any data from what we can tell. Is there any known issues around importing VMs when the disks are different sizes causing one to be vhd and the other qcow?

Looking in the xensource log file we see this which might be a clue as to the issue.

[debug||641 /var/lib/xcp/xapi|VBD.create R:4257b476bd74|vbdops] Checking whether there's a migrate in progress...
[error||628 HTTPS 10.1.1.203->:::80|Importing raw VDI R:b2be45fe8be8|vhd_tool_wrapper] vhd-tool failed, returning VDI_IO_ERROR
[error||628 HTTPS 10.1.1.203->:::80|Importing raw VDI R:b2be45fe8be8|vhd_tool_wrapper] vhd-tool output: vhd-tool: Non-zero size required (either a pre-existing destination file or specified via --destination-size on the command line)\x0A
[error||628 HTTPS 10.1.1.203->:::80|Importing raw VDI R:b2be45fe8be8|import] Caught exception: VDI_IO_ERROR: [ Device I/O errors ]
[error||628 :::80|VDI.import D:476cc7b7bc5e|backtrace] Importing raw VDI R:b2be45fe8be8 failed with exception Server_error(VDI_IO_ERROR, [ Device I/O errors ])
[error||628 :::80|VDI.import D:476cc7b7bc5e|backtrace] Raised Server_error(VDI_IO_ERROR, [ Device I/O errors ])