This page discusses a severe issue of the Hypervisor Version 1.X which is fixed by the Hypervisor Versions 2.x.

2017-03-06 Problem FOUND and RESOLVED! (only necessary for Hypervisor Versions 1.X)

After the problem was reproducable and we figured out that it was related to the I/O, we tested serveral different options to lower the I/O. Finally we found out that XenServer is using LVM (Linux Logical Volumes) for their running instances instead of qcow files. So we tried LVM for the beroNet hypervisor too and et voila the problem disappeared! 

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NOTE: LVM is much more performant, so the update will not only bring more stability, it will also bosst boost the speed of the VMs. 

2017-02-05 Problem finaly reproducable!

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