topic Re: Unzipping large files in Operating System - HP-UX

Unzipping large files

Alex Grigore — Mon, 27 Jun 2005 08:03:47 GMT

Hello,

We have made a backup using the command:
/usr/bin/zip -r - /d0/folder_with_large_files | split -b 1500m - name_ 1>>$error_file_name

As a result we've got three files, file_aa, file_ab, file_ac.

The problem is that we cannot manage to unzip the files .

cat file_aa file_ab file_ac >> large_file won't work - it stops at 2GB

We have merged the files using Total Commander on Windows, but this does not help either.
After moving the large_file on HP-UX, running unzip large_file will yeld cannot find large_file.

Thank you in advance,
Alexandru.

Re: Unzipping large files

Patrick Wallek — Mon, 27 Jun 2005 08:08:03 GMT

It sounds like you first need to enable largefiles on the filesystem.

# fsadm /d0

will tell you if largefiles is enabled. If it isn't, and you have online JFS,

# fsadm -o largefiles /d0

Re: Unzipping large files

Robert-Jan Goossens_1 — Mon, 27 Jun 2005 08:10:07 GMT

Hi Alexandru,

Check if your filesystem supports large files > 2 GB

online jfs

# fsadm /filesystem_name

NON jfs

# fsadm /dev/vgxx/rlvolx
nomultifsets
largefiles

Regards,
Robert-Jan

Re: Unzipping large files

Mahesh Kumar Malik — Mon, 27 Jun 2005 08:14:26 GMT

Hi

It seems like your unzip utility is compiled in 32 bit mode. You need to get one compiled in 64 bit mode.

Mahesh

Re: Unzipping large files

Alex Grigore — Mon, 27 Jun 2005 08:46:13 GMT

Hello,

After enabling the largefiles with:
fsadm -o largefiles /d1

I could run the cat file_aa file_ab file_ac>>large_file without any errors.

Thank you for your prompt and concise answers.

Best regards,
Alexandru.

Re: Unzipping large files

Alex Grigore — Wed, 29 Jun 2005 05:44:12 GMT

Closing the thread.