>>Sorry, forgot to mention - of course I`ve pulled all previous >>zeroing-related queue, so I haven`t had only the QMP-related fix >>running on top of the master :)
Hi, I had a discussion about rbd mirroring, detect-zeroes and sparse target, some months ago with paolo http://qemu.11.n7.nabble.com/qemu-drive-mirror-to-rbd-storage-no-sparse-rbd-image-td293642.html Not sure it's related but "Lack of bdrv_co_write_zeroes is why detect-zeroes does not work. Lack of bdrv_get_block_status is why sparse->sparse does not work without detect-zeroes. Paolo " ----- Mail original ----- De: "Andrey Korolyov" <[email protected]> À: "Fam Zheng" <[email protected]> Cc: "Kevin Wolf" <[email protected]>, "qemu block" <[email protected]>, "Jeff Cody" <[email protected]>, "qemu-devel" <[email protected]>, "Markus Armbruster" <[email protected]>, "stefanha" <[email protected]>, "pbonzini" <[email protected]> Envoyé: Mercredi 10 Juin 2015 17:48:54 Objet: Re: [Qemu-devel] [PATCH 1/2] qapi: Add "detect-zeroes" option to drive-mirror > '{"execute":"drive-mirror", "arguments": { "device": > "drive-virtio-disk0", "target": > "rbd:dev-rack2/vm33090-dest:id=qemukvm:key=xxx:auth_supported=cephx\\;none:mon_host=10.6.0.1\\:6789\\;10.6.0.3\\:6789\\;10.6.0.4\\:6789", > > "mode": "existing", "sync": "full", "detect-zeroes": true, "format": > "raw" } }' Sorry, forgot to mention - of course I`ve pulled all previous zeroing-related queue, so I haven`t had only the QMP-related fix running on top of the master :)
