[PVE-User] Speed problem

kai at zimmer.net kai at zimmer.net
Tue Jun 2 16:33:09 CEST 2015


Hi Luis, 

growing qcow2 virtual disks can take some time. If you use qcow2, you
could try to grow it before copying via network with 

dd if=/dev/zero of=100M.img bs=1M count=100 (generates 100 MB file) 

... and remove the file before copying - just to see if file system
growth has an impact. 

Also make sure you have unique MAC identifiers for all network
interfaces involved. 



Am 2015-06-02 16:16, schrieb Luis G. Coralle: 

> Yes, I try with scp -c arcfour -o Compression=no 
> 2015-06-02 10:20 GMT-03:00 <mir at miras.org>:
> On 2015-06-02 14:25, Luis G. Coralle wrote:
> While running scp, I monitor the CPU and read/write disk of the host
> and guests and was completely normal.
> Is there some kind of priority for such operations? Is there anything
> else I can try?
> scp uses ssh to copy files which means the traffic is encrypted. To speed up the transfer you could choose a weak cipher like arcfour. scp -c arcfour src dest.
> ----
> This mail was virus scanned and spam checked before delivery.
> This mail is also DKIM signed. See header dkim-signature.


Luis G. Coralle 

pve-user mailing list
pve-user at pve.proxmox.com
http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user [1]


[1] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.proxmox.com/pipermail/pve-user/attachments/20150602/b540c0d3/attachment.htm>

More information about the pve-user mailing list