Preventing Shutdown on Active NFS Servers?

Posted by Cliff on Wednesday December 3, 2003 @12:55PM from the disconnect-your-shares,-first dept.

Ed Almos asks: "Like many Slashdot Readers, I run a small network at home with a server and a number of desktops. The server holds all our files as NFS shares and doubles as a desktop machine should the need arise. Problems however occur if the server is shut down whilst there are NFS shares in use, the minimum disruption is a crashed desktop and a couple of times I have had to deal with corrupted files. Does anyone know of a way to prevent shutdown of a machine if someone else has drives mounted to its NFS shares ? I have already explored use of the /etc/shutdown.allow file but all this does is determine who can kill the machine. The minimal solution would be something similar to a Microsoft Windows system, where a request to shutdown brings up a warning window that there are users connected to the system, but I am not sure how to achieve this on a Linux system. Ideally I would like to prevent shutdown of a system with active NFS shares altogether, or at least until the user has unmounted and logged off the network."

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Re:use correct mount options by mcSey921 · 2003-12-03 14:57 · Score: 1, Redundant

The parent has the correct answer.

rw,hard,nointr

Those are the correct options for a read-write NFS drive that will freeze the clients until the server has been restarted. After restart the clients continue as if nothing has happened.