[libvirt-users] Copy volume from one storage to another
Hi, I want to copy a volume from one to pool to another pool through libvirt golang api but I’m unaware of any such functions. Can anybody guide me a little bit here? Best Regards, Shashwat Shagun me@shashwat.tech
On Wed, Aug 08, 2018 at 08:52:43PM +0530, Shashwat shagun wrote:
Hi, I want to copy a volume from one to pool to another pool through libvirt golang api but I’m unaware of any such functions. Can anybody guide me a little bit here?
The "StorageVol" interface in Go provides "Upload" and "Download" methods that associate a "Stream" with the volumes. So you'd call Download on the original vol, Upload on the target vol, and read from one stream, and write to the other stream. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
If two pools on the same nore I'm recommend to use createvolfromxml. In this case libvirt do internal copy on the node via qemu-img. Download/upload takes all data on node that runs client. ср, 8 Авг 2018, 18:24 Shashwat shagun <me@shashwat.tech>:
Hi, I want to copy a volume from one to pool to another pool through libvirt golang api but I’m unaware of any such functions. Can anybody guide me a little bit here?
Best Regards, Shashwat Shagun me@shashwat.tech
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participants (3)
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Daniel P. Berrangé -
Shashwat shagun -
Vasiliy Tolstov