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[virt-tools-list] Default use of caching on raw volumes



If possible I'd like to get some opinions on the following bug report:

https://bugzilla.redhat.com/show_bug.cgi?id=623188

Obviously, I believe that virt-manager should be defaulting to disabling caching for disks backed by raw volumes as qemu suggests. There is a huge performance difference in doing so. AFAIK, there is no difference, in terms of risk, between no cache and Writethrough.

I don't quite get Daniel's response and subsequent closing the bug report indicating that it's a policy decision for virt-manager and the like. I filed the report where virt-manager's web site indicated the report should be filed.


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