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<H1>[Mageia-dev] Mounting nfs4 shares</H1>
<B>Anne Wilson</B>
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TITLE="[Mageia-dev] Mounting nfs4 shares">annew at kde.org
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<I>Fri Apr 20 21:10:29 CEST 2012</I>
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<PRE>-----BEGIN PGP SIGNED MESSAGE-----
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On 19/04/12 19:35, Anssi Hannula wrote:
><i> 19.04.2012 21:16, Anne Wilson kirjoitti:
</I>>><i> I have been using lines such as this to mount nfs shares:
</I>>><i>
</I>>><i> 192.168.0.40:/Data1 /mnt/borg2_Data1 nfs4
</I>>><i> rsize=8192,wsize=8192,timeo=14,intr
</I>>><i>
</I>>><i>
</I>>><i> mount -a Mount is denied because the NTFS volume is already
</I>>><i> exclusively opened. The volume may be already mounted, or another
</I>>><i> software may use it which could be identified for example by the
</I>>><i> help of the 'fuser' command. mount.nfs4: an incorrect mount
</I>>><i> option was specified
</I>>><i>
</I>>><i> Do I need to change these mount lines in some way?
</I>><i>
</I>><i> Possibly, but the documentation is wrong then.
</I>><i>
</I>><i> The nfs man page says that the line is ok, although "intr" and
</I>><i> "nfs4" are deprecated (but should still be working).
</I>><i>
</I>><i> You can still try replacing "nfs4" with "nfs" (v4 is still tried
</I>><i> first according to the man page), and removing "intr" (according to
</I>><i> man page it has been ignored for years).
</I>><i>
</I>I'll try that in the morning - been out all day today.
><i> On a related note, why do you use rsize=8192,wsize=8192? If for
</I>><i> performance reasons, AFAIK and IIRC specifying them was useful only
</I>><i> 5-10 years ago or so, but now they actually could degrade
</I>><i> performance as the default nowadays is "use as large values as
</I>><i> possible", which is (currently) 1048576. So probably makes sense to
</I>><i> remove them too.
</I>><i>
</I>OK, I'll try that too. As for the reason, I updated CentOS 5 on the
server to CentOS 6, and about the same time updated my Fedora
installations. This is some time back, so my memory is a little hazy
- - I think the change that broke the mounts was at the server end, but
I'm not sure about that. Anyway, I did lots of googling to find help,
and eventually got them to work in this way. Of course the pages I
read could have been way out of date - sadly few pages have a date on
them, so it's hard to know how old and how relevant they are.
(My experience on the subject of non-dated pages are why I persuaded
the KDE sysadmins to have updated information in page footers on
UserBase. At least you can see if a page gets out of date.)
Anne
- --
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