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Conference smurf::nfs

Title:	SunNet - the defacto distributed system standard

Moderator:	CVG::PETTENGILL

Created:	Mon Jun 02 1986
Last Modified:	Fri May 16 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	479
Total number of notes:	1270

476.0. "how to get server status" by MLNCSC::VOCI () Wed Apr 09 1997 11:57

    Hello,
    
    a customer has the following configuration:
    
    	1 server that exports a directory called /prova/dati
    
    	1 client that mounts the remote directory
    
    on the client runs a program that created and update several files.
    
    Some times the server is turn down while the client still has the
    remote directory mounted.
    
    Is there a fast way to know that the remote server is actualy unavailable?
    
    If he issues a write on a file, non longer served, he sees the message:
    NFS3 server bluff not responding still trying
    and the command doesn't return.
    
    Digital Unix 4.0
    
    Thanks, 
    Gea

T.R	Title	User	Personal Name	Date	Lines
476.1	Re: how to get server status	QUABBI::"[email protected]"		`Thu Apr 10 1997 20:36`	17
	[email protected] writes: >Title: how to get server status > Is there a fast way to know that the remote server is actualy unavailable? My usual recommendations are "ping <server>" and "rpcinfo -p <server>". If you want to see if NFS is acutally willing to talk back to you, then "rpcinfo -u <server> nfs 3" is good. Ping tells you if the server is up at all, rpcinfo -p tells you if portmap is running and what has registered with it, rpcinfo -u or -t actually calls the service. -- <> Eric (Ric) Werme <> This space under reconstruction <> <> <[email protected]> <> <> [posted by Notes-News gateway]
476.2	from C program?	MLNCSC::VOCI		`Fri Apr 11 1997 03:43`	8
	Do you know if it is possible to have the same information from a system call that I can be used by a C program? I've tested the stat* routines with no success. Thanks, Gea
476.3		KITCHE::schott	Eric R. Schott USG Product Management	`Sat Apr 12 1997 09:21`	7
	Hi You could mount soft rather than hard, and be sure you application checks I/O status returns on I/O calls, then you would find out within the NFS timeout.