On Friday 01 May 2015 02:33:30 Erik Christiansen wrote:
> On 30.04.15 19:51, Gene Heskett wrote:
> > But I have a PITA in the machine that runs my lathe, its recently
> > turned into a crashomatic, with uptimes of about an hour!
> >
> > And since it is an nfs mount, when it crashes, it locks up the rest
> > of the machines that are mounting it. Thats the PITA problem. And
> > IMO a damned bug in nsf4.
>
> Gene, if the problem is not just loss of access (unavoidable once the
> NFS exporter has crashed), but the lock-up you describe, then changing
> the NFS mount from "hard" to "soft" should fix that.
Humm, sounds like I should be reading the manpage more better. :(
>
> ("man nfs" says data integrity may suffer if connection is not over
> TCP-IP, but I've never noticed, admittedly with now 30-year old NFS,
> under Solaris)
>
> That manpage does, though, say: "Using the intr option is preferred to
> using the soft option because it is significantly less likely to
> result in data corruption." But then it goes on to say it isn't much
> use after kernel 2.6.25. Looks like the developers don't use NFS much.
>
> In the old days, I used soft mounts to allow a server farm to come up
> despite NFS cross-mounts. With hard mounts, and A needing B, and B
> needing A, they could never come up. Using a soft mount on one side
> let them boot, at the cost of a manual NFS mount a little later. (Soft
> mounts on both sides could necessitate two manual NFS mounts)
>
> Erik
Thanks Erik. I'll check it out.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
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