06-26-2019
My guess is that this server is not in a hung state but is running dead slow. The fact that ping still works proves that the vmware guest OS is alive.
This guest OS is either out of memory resource or the whole platform is out of memory resource. Since you are not complaining that other guests are showing any signs of problems I would ask whether a maximum real memory limit was put on this guest when is was configured. If so, as load increases on this guest it could reach a level where it is allowed no more memory and so starts to page like mad. The symptoms of very slow (almost impossible) login are typical of resource limitation. If you were to wait a very long time probably login would eventually complete.
What OS is under VMWare and booting the platform?
Could another guest OS on this platform suddenly be demanding a lot of resource thereby killing other guests?
Could you easily increase the overall RAM on the whole platform to test this theory out?
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LEARN ABOUT FREEBSD
bhyveload
BHYVELOAD(8) BSD System Manager's Manual BHYVELOAD(8)
NAME
bhyveload -- load a FreeBSD guest inside a bhyve virtual machine
SYNOPSIS
bhyveload [-c cons-dev] [-d disk-path] [-e name=value] [-h host-path] [-m mem-size] vmname
DESCRIPTION
bhyveload is used to load a FreeBSD guest inside a bhyve(4) virtual machine.
bhyveload is based on loader(8) and will present an interface identical to the FreeBSD loader on the user's terminal.
The virtual machine is identified as vmname and will be created if it does not already exist.
OPTIONS
The following options are available:
-c cons-dev
cons-dev is a tty(4) device to use for bhyveload terminal I/O.
The text string "stdio" is also accepted and selects the use of unbuffered standard I/O. This is the default value.
-d disk-path
The disk-path is the pathname of the guest's boot disk image.
-e name=value
Set the FreeBSD loader environment variable name to value.
The option may be used more than once to set more than one environment variable.
-h host-path
The host-path is the directory at the top of the guest's boot filesystem.
-m mem-size [K|k|M|m|G|g|T|t]
mem-size is the amount of memory allocated to the guest.
The mem-size argument may be suffixed with one of K, M, G or T (either upper or lower case) to indicate a multiple of Kilobytes,
Megabytes, Gigabytes or Terabytes respectively.
The default value of mem-size is 256M.
EXAMPLES
To create a virtual machine named freebsd-vm that boots off the ISO image /freebsd/release.iso and has 1GB memory allocated to it:
bhyveload -m 1G -d /freebsd/release.iso freebsd-vm
To create a virtual machine named test-vm with 256MB of memory allocated, the guest root filesystem under the host directory
/user/images/test and terminal I/O sent to the nmdm(4) device /dev/nmdm1B
bhyveload -m 256MB -h /usr/images/test -c /dev/nmdm1B test-vm
SEE ALSO
bhyve(4), nmdm(4), vmm(4), bhyve(8), loader(8)
HISTORY
bhyveload first appeared in FreeBSD 10.0, and was developed at NetApp Inc.
AUTHORS
bhyveload was developed by Neel Natu <neel@FreeBSD.org> at NetApp Inc with a lot of help from Doug Rabson <dfr@FreeBSD.org>.
BUGS
bhyveload can only load FreeBSD as a guest.
BSD
January 7, 2012 BSD