IBM AIX PowerVM backup causes the server to re-boot
PowerVM is still not part of the compatibility matrix with Netvault .
However there are few customer backing PowerVm using the NetVault and works fine with most of the VM as the architecture is the same with AIX.
We noticed in one particular scenario, the AIX Vm server gets re-booted\crashed due to high server utilization of Ram and CPU .
To lower the system utilization & avoid system crash\re-boot you could try the below suggestion .
Enhancement request FT-994 (include AIX PowerVM as a supported OS for NetVault Backup clients) has been submitted to Development for consideration in a future release of NetVault Backup.