Hi Richard,
W liście z ?ro, 23-07-2003, godz. 19:47, Tru64 User pisze:
> Hi All,
>
> My Unix boxes are heavy crossmounters of disks served
> mainly by Mandy Linux, + mandy-mandy mounts.
>
> Problem is that if any one host goes down, all other
> hosts hang with a df. Additionally, other programs
> that utilize "df" (eg. our backups, ssh --when it
> tries to generate random seed runs a number of
> commands, including df) hang as well.
>
> I have read and implemented two "thought" solutions:
>
> 1. mounting inside a dir i.e.
> mount -t nfs HOSTA:/dirAAA /HOSTA/dirAAA
> instead of:
> mount -t nfs HOSTA:/dirAAA /dirAAA
> It is not suggested to mount nfs dirs under root.
>
> 2.Using the "soft" option for mounting (default=hard).
>
> None of these are a cure. Any additional suggestions
> out there?
I have a very similar situation (lots of MDK boxes cross-mounting NFS
directories) and my NFS options are:
rw,rsize=8192,wsize=8192,hard,intr
Once I migrated to these options, my problems with boxes hanging on
"df" ended. The options basically mean, that if a server goes down, all
the proccesses accessing the directory receive an interrupt, usually
meaning that they die. But they do not hang. And if the server comes
back up, the mount magically starts working again, with no additional
action on the client needed.
Also, if You are mounting home directories by NFS, I would suggest
adding the "nolock" option.
Cheers,
Adam
>
> ______________________________________________________________________
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Adam Kisiel | e-mail: [EMAIL PROTECTED]
Faculty of Physics | homepage: www.if.pw.edu.pl/~kisiel
Warsaw University Of Technology |
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