06-26-2019
Yes, we can assume that it was dead slow. I waited for 20 minutes, before I hit reset button. since this was critical application server, I was not able to wait longer. From VMWare console, I checked and memory graph was not showing peak utilization. But I have seen behavior where server was frozen due to memory crunch and VMWare console doesn't show that. So your theory can be true in this case too.
VMWare platform is stable (over 300 VM servers are running on it) and none other VM complained about it and still have large amount of memory. Memory is capped to each VM. For example, for this affected VM, 8 GB of memory is allocated.
As a preventive action, I am looking for alert, if it happens again. There could be a small script running from other server and keep login to affected server and say "Login OK". As soon as it delays or not responding for 10-20 seconds, it will send email to admins. But we want to do it many servers and that will become a messy solution. HPOpenview is handled by different team, but they are not taking any initiative to advance on it. So I am looking for solution, if something can be done with this tool.
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LEARN ABOUT DEBIAN
fence_vmware_soap
FENCE_AGENT(8) System Manager's Manual FENCE_AGENT(8)
NAME
fence_vmware_soap - Fence agent for VMWare over SOAP API
DESCRIPTION
fence_vmware_soap is an I/O Fencing agent which can be used with the virtual machines managed by VMWare products that have SOAP API v4.1+.
Name of virtual machine (-n / port) has to be used in inventory path format (e.g. /datacenter/vm/Discovered virtual machine/myMachine).
Alternatively you can use UUID (-U / uuid) to access virtual machine.
fence_vmware_soap accepts options on the command line as well as from stdin. Fenced sends parameters through stdin when it execs the agent.
fence_vmware_soap can be run by itself with command line options. This is useful for testing and for turning outlets on or off from
scripts.
Vendor URL: http://www.vmware.com
PARAMETERS
-o, --action=<action>
Fencing Action (Default Value: reboot)
-a, --ip=<ip>
IP Address or Hostname This parameter is always required.
-l, --username=<name>
Login Name This parameter is always required.
-p, --password=<password>
Login password or passphrase
-S, --password-script=<script>
Script to retrieve password
-z, --ssl
SSL connection
-n, --plug=<id>
Physical plug number or name of virtual machine This parameter is always required.
-U, --uuid
The UUID of the virtual machine to fence.
-u, --ipport=<port>
TCP port to use for connection with device
-v, --verbose
Verbose mode
-D, --debug-file=<debugfile>
Write debug information to given file
-V, --version
Display version information and exit
-h, --help
Display help and exit
-C, --separator=<char>
Separator for CSV created by operation list (Default Value: ,)
--power-timeout
Test X seconds for status change after ON/OFF (Default Value: 20)
--shell-timeout
Wait X seconds for cmd prompt after issuing command (Default Value: 3)
--login-timeout
Wait X seconds for cmd prompt after login (Default Value: 5)
--power-wait
Wait X seconds after issuing ON/OFF (Default Value: 0)
--delay
Wait X seconds before fencing is started (Default Value: 0)
--retry-on
Count of attempts to retry power on (Default Value: 1)
ACTIONS
on Power on machine.
off Power off machine.
reboot Reboot machine.
status This returns the status of the plug/virtual machine.
list List available plugs with aliases/virtual machines if there is support for more then one device. Returns N/A otherwise.
monitor
Check if fencing device is running. List available plugs/virtual machines or get status of machine (if it does not support more).
metadata
The operational behavior of this is not known.
STDIN PARAMETERS
action Fencing Action (Default Value: reboot)
ipaddr IP Address or Hostname This parameter is always required.
login Login Name This parameter is always required.
passwd Login password or passphrase
passwd_script
Script to retrieve password
ssl SSL connection
port Physical plug number or name of virtual machine This parameter is always required.
uuid The UUID of the virtual machine to fence.
ipport TCP port to use for connection with device
verbose
Verbose mode
debug Write debug information to given file
version
Display version information and exit
help Display help and exit
separator
Separator for CSV created by operation list (Default Value: ,)
power_timeout
Test X seconds for status change after ON/OFF (Default Value: 20)
shell_timeout
Wait X seconds for cmd prompt after issuing command (Default Value: 3)
login_timeout
Wait X seconds for cmd prompt after login (Default Value: 5)
power_wait
Wait X seconds after issuing ON/OFF (Default Value: 0)
delay Wait X seconds before fencing is started (Default Value: 0)
retry_on
Count of attempts to retry power on (Default Value: 1)
fence_vmware_soap (Fence Agent) 2009-10-20 FENCE_AGENT(8)