does NFS cache directories??

[clint at neotrance.dyndns.org (Clint M. Sand)]

>On Wed, Sep 29, 2004 at 08:19:41PM -0400, Clint M. Sand wrote:
> On Wed, Sep 29, 2004 at 08:29:50AM -0400, gbburkhardt at verizon.net wrote:
>I have Mandrake 9.1 system (kernel 2.4.21)accessing a Solaris 8 NFS volume.  Occasionally, there is a delay
> between the time of creating a file on the Solaris disk, and its availability over NFS.  In my test, I created a file on the Solaris system with "touch junk", and then
> tried "ls /home/remote-solaris/user/junk" on the Linux system.  There was a delay of over 10 seconds before the
> Linux system would see the new file.  During that time,
> 'ls' would report no such file or directory.
> 
> This indicates to me that the Linux system is caching the directory entries.  Is there any way to turn this
> off, and force the Linux system to access the NFS volume each time?
 
http://www.linuxforum.com/man/nfs.5.php
 
see "noac" option
 
> 
> TIA....
> 
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