|Subject:||Re: [Qemu-block] import thin provisioned disks with image upload|
|Date:||Fri, 8 Dec 2017 00:34:57 +0100|
For transferring images over http, there is no way to avoid sendingunused blocks, except compression.
Maybe this file was crated with preallocation=full?In virt-manager there is not this logic by default.The default format is qcow2/sparseWhen you create/add a disk you can choose "Select or create custom storage":And then choose a format between:raw, qcow, qcow2, qed, vmdk, vpc, vdiIn my case it was the default one, so qcow2, as qemu-img correctly detects.I tested creating qcow2 files with virt manager, and it seems to usethe preallocation=metadata by default (behind your back), I guessfor improving performance in some cases. oVirt doe not use thisoption so we don't have this issue when downloading files.
I hope I convinced you this time ;-)Nir
|[Prev in Thread]||Current Thread||[Next in Thread]|