Relationship of max?siz to file size limits

[Jeff Schussele]

All,

I have a system (N-4000 11.0) with an FS that does have largefiles enabled that will not allow a approx 2.1 Gb file to be created - via gunzip. I verified with ulimit -a that root has no filesize limit...duh. Yet root cannot gunzip this file - get file too large msg.

The only thing I can think of that's stopping me would be the max?siz kernel parameters - they are:

masxdsiz 1,073,741,824
maxdsiz_64bit same
maxssiz 33,554,432
maxssiz_64bit same
maxtsiz 134,217,728
maxtsiz_64bit 1,073,741,824

Does anyone see the problem here?

Thanks,
Jeff

[James R. Ferguson · Accepted solution]

Hi Jeff:

Your version of 'gunzip' may not support largefiles. Try downloading this version from the HP porting center:

http://hpux.connect.org.uk/hppd/hpux/Gnu/gzip-1.3.3/

Regards!

...JRF...

[Steven Sim Kok Leong]

Hi Jeff,

Can you double-check that your FS supports largefiles using fstyp?

Does prealloc encounter the same problem too?

# prealloc testfile 3246391296

Hope this helps. Regards.

Steven Sim Kok Leong

[A. Clay Stephenson]

Those tunables (unless they were set to ridiculously low vales) have nothing to do with this. Even when largefiles are enabled for the filesystem and ulimit is unlimited, the application itself may have limits or may not have been written to take advantage of large files.

[Tom Geudens]

Hi Jeff,
The problem (as James indicated) is gzip. The standard version will NOT go above 2Gb. You could use compress instead.

Regards,
Tom

[Jeff Schussele]

Hi folks,

gunzip -V shows
1.2.4 (18 Aug 93)
Compilation options:
DIRENT UTIME STDC_HEADERS HAVE_UNISTD_H

So it appears somewhat ancient.
Can anybody verify that this ver does not support largefiles?

Jeff

[S.K. Chan]

Any version below 1.3.x is probably not stable when it comes to 2GB file size limit. Check ..
http://www.gzip.org/
Hope it helps ..

[Jeff Schussele]

OK guys, thanks.

Turned out that the 1.2.4 that was already on there was the culprit. Since I couldn't get immediate approval to up the ver, I reloaded the 1.2.4a from the depot & tried that.

Here's the interesting part, it uncompressed up to 2.038 Gb & sat there paused for about 20-30 seconds & then took off again to the final 2.8Gb size.

Thanks all.

Jeff