# Windows Server 2016 slow disc performance

**URL:** <https://forum.opennebula.io/t/windows-server-2016-slow-disc-performance/5455>\
**Category:** Product Support\
**Created:** [December 19, 2017, 12:02pm UTC](https://forum.opennebula.io/t/windows-server-2016-slow-disc-performance/5455 "2017-12-19T12:02:07Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![UAnton](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/uanton/32/6309_2.png) [@UAnton](https://forum.opennebula.io/u/UAnton)\
**Post date:** [December 19, 2017, 12:31pm UTC](https://forum.opennebula.io/t/windows-server-2016-slow-disc-performance/5455/2 "2017-12-19T12:31:37Z")

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Hello,

> [@Ceph + OpenNebula issue](https://forum.opennebula.io/t/ceph-opennebula-issue/2569/9):
>
> Hi UAnton, In addition if you are using Centos7 try qemu-kvm-ev from the oVirt repo. And as addition try to enable ‘virtio-blk data plane’. But with the 'qemu-kvm-ev" I can’t achieve remarkable additional performance gain by enabling it. (you can enable the feature by adding an “[XML tweaking script](https://github.com/OpenNebula/addon-storpool/blob/master/vmm/kvm/vmTweakVirtioBlkDataPlane.py)” in the remotes/vmm/kvm/deploy script, just before the XML is passed to virsh) Kind Regards, Anton Todorov

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