Running EMC NetWorker server on a Server 2009 R2 w/ sp1 VM running on ESXi host. The VMDK is stored on a VNXe machine along with the VMDKs for all the other VM servers our organization runs. None of the other VMs have this issue:
Each night for the latter half of this week, sometime after 9pm, this server loses its hard drive. Checking the systems in the morning I find this machine sitting at the boot prompt after it has tried PXE and it reports it cannot find a bootable device. Checking the VM settings I find there is no hard drive attached to the machine.