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Re: 20020123: large files in NETCDF 3.4 under HPUX 11
- Subject: Re: 20020123: large files in NETCDF 3.4 under HPUX 11
- Date: Thu, 24 Jan 2002 10:48:07 -0700
>To: address@hidden
>From: Tim Davis <address@hidden>
>Subject: large files in NETCDF 3.4 under HPUX 11
>Organization: The Goodyear Tire & Rubber Co.
>Keywords: 200201231302.g0ND2Yx07542 netCDF 3.4 HP-UX 11.0 large files
Hi Tim,
With the help of our systems administrator, Mike Schmidt, I just
created a 3 Gbyte netCDF file on our HP-UX system. Mike had to remake
the file system on which I was testing, because the default is to only
permit files less than 2 Gbytes. As Mike wrote:
It looks like it must be enabled on a filesystem basis for both HFS
and VxFS filesystem types. I just turned it on for /test on can now
create files greater than 2GB. COMET has some documentation on
doing this via the command line;
http://www.comet.ucar.edu/strc/old_sac/info/GeneralInfo/Documentation/lg_files.html
but it can also be done via the system admin tool SAM.
The only flag I used on the compilation of the netCDF test program was
"CFLAGS=+DD64", and on the new file system, everything just worked. I
had originally built the library with the additional environment
variable setting CPPFLAGS='-D_HPUX_SOURCE -w', but now I'm not even
sure that was necessary. By the next release, I'll have this
documented with the minimal flags necessary.
By the way, another version of the HP-UX white paper on large file
support is available from:
http://devresource.hp.com/STK/partner/lg_files.pdf
--Russ
_____________________________________________________________________
Russ Rew UCAR Unidata Program
address@hidden http://www.unidata.ucar.edu