Hi Guys

Does Cloudstack have a disk write speed limit somewhere in its setting? We have been transferring many files from remote servers to VM machines on our Cloudstack instance and we recently noticed that the VM write speeds are all limited to about 5-8 MB/s. But the underlying hardware of the KVM uses SSDs capable of write speeds of 300 - 600 MB/s. My disk offering on my current vms are set to "No Disk Cache" with thin provisioning, could this be the reason? I understand that "Write Back Disk Cach" has better write speeds. Also I have VMs set as virtio for its disk controller. What could I be missing in this case?

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Regards / Groete

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