# HDF5 files on NFS?

**URL:** <https://forum.hdfgroup.org/t/hdf5-files-on-nfs/3985>\
**Category:** Hdf-forum archives\
**Created:** [March 31, 2017, 9:06am UTC](https://forum.hdfgroup.org/t/hdf5-files-on-nfs/3985 "2017-03-31T09:06:57Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![dave.allured](https://forum.hdfgroup.org/letter_avatar_proxy/v4/letter/d/8e8cbc/32.png) [@dave.allured](https://forum.hdfgroup.org/u/dave.allured)\
**Post date:** [April 3, 2017, 11:23pm UTC](https://forum.hdfgroup.org/t/hdf5-files-on-nfs/3985/8 "2017-04-03T23:23:32Z")

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Sorry, I am confused about the meaning of "FALSE" in this context. Is that  
actual setting the five-character string "FALSE", or the digit "0"? Thanks  
for your help.

--Dave

> **···**
>
> On Mon, Apr 3, 2017 at 5:14 PM, Dave Allured - NOAA Affiliate \< dave.allured@noaa.gov\> wrote:
> 
> > Dana,
> > 
> > Is HDF5\_USE\_FILE\_LOCKING applied at configure time, build time, or run  
> > time?
> > 
> > --Dave
> > 
> > On Mon, Apr 3, 2017 at 4:27 PM, Dana Robinson \<derobins@hdfgroup.org\> \> wrote:
> > 
> > > Hi all,
> > > 
> > > Sorry I've missed most of this discussion, but HDF5 1.10.1 checks an  
> > > environment variable that you can use to disable file locking  
> > > (HDF5\_USE\_FILE\_LOCKING). Setting this to "FALSE" disables all file lock  
> > > calls.
> > > 
> > > Cheers,
> > > 
> > > Dana Robinson  
> > > Software Engineer  
> > > The HDF Group
> > 
> > \<snip\>

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