Hi everyone,

I'm having trouble to archive a good I/O rate using cloudstack qcow2 with any 
type of caching (or even disabled).

We have some RAID-5e SSD arrays which give us a very good rates directly on the 
node/host, but on the guest the speed is terrible.

Does anyone knows a solution/workaround for this? I never used qcow (only 
raw+lvm) so I don't know much to do to solve this.


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