Hi,

my observations are that you absolutely need to disconnect from a running
linux machine.

If you logoff, your machine is killed.

If you close the TN3270 or it crashes, you have to reconnect quickly to your
running session, then you can disconnect.  You might need to enter "begin"
when reconnecting to the session, but it depends of your profile.

I don't know what is the length of the timer, but you need to reconnect
quickly.  As soon as you reconnect to the TN3270 session, your Linux guest
will continue its operations.

Regards.


On 6/29/06, Jack Hoarau <[EMAIL PROTECTED]> wrote:

Below is what I experienced considering that the described behavior can
have harmful consequences:
Let's figure a Linux server is running under z/VM to serve network
connectivity (gateway firewalling, etc...) to a colony of Linux's. The
system administrator log-on in the running server from the VM console, to
do some administration tasks, completes the tasks but the VM console (pcom
or x3270) drops unexpectedly (network connection lost, 3270 emulator
closed) before he enters log-off or disconnect. From a VM point of view
One
would consider the Linux guest still up but just disconnected and walk
away: Wrong !  in reality It is suspended...not running...not serving...
frozen. After a while z/VM just force the guest definitively off breaking
the linux network server.
I suppose this is a normal behavior of z/VM to suspend dispatching the
guest due to the console I/O error. Do you think this is compatible with
running Linux under z/VM? Does anyone has this kind of concern when using
the console with Linux under z/VM ? CP Q SET shows RUN set to ON but it
seems this is not to sufficient, am I missing some other important
function
settings of the guest ?

Jack HOARAU

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