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-.. _vyosonvmware:
-
-Running on VMware ESXi
-######################
-
-ESXi 5.5 or later
-*****************
-
-.ova files are available for supporting users, and a VyOS can also be stood up using a generic Linux instance, and attaching the bootable ISO file and installing from the ISO
-using the normal process around `install image`.
-
-.. NOTE:: There have been previous documented issues with GRE/IPSEC tunneling using the E1000 adapter on the VyOS guest, and use of the VMXNET3 has been advised.
-
-Memory Contention Considerations
---------------------------------
-When the underlying ESXi host is approaching ~92% memory utilisation it will start the balloon process in s a 'soft' state to start reclaiming memory from guest operating systems.
-This causes an artificial pressure using the vmmemctl driver on memory usage on the virtual guest. As VyOS by default does not have a swap file, this vmmemctl pressure is unable to
-force processes to move in memory data to the paging file, and blindly consumes memory forcing the virtual guest into a low memory state with no way to escape. The balloon can expand to 65% of
-guest allocated memory, so a VyOS guest running >35% of memory usage, can encounter an out of memory situation, and trigger the kernel oom_kill process. At this point a weighted
-lottery favouring memory hungry processes will be run with the unlucky winner being terminated by the kernel.
-
-It is advised that VyOS routers are configured in a resource group with adequate memory reservations so that ballooning is not inflicted on virtual VyOS guests.
-
-
-
-
-
-References
-----------
-
-https://muralidba.blogspot.com/2018/03/how-does-linux-out-of-memory-oom-killer.html
-