topic Re: File size > 2GB in Operating System - Linux

File size > 2GB

Jagadesh — Wed, 23 Jun 2004 02:56:52 GMT

Dear All,

I need to create a file of size more than 2GB in Linux Advanced server.
How can i go about in doing the same in 32 bit arch??

Thanks
Jagadesh

Re: File size > 2GB

Claudio Cilloni — Wed, 23 Jun 2004 03:28:51 GMT

the ext3 and reiserfs usually used in modern linux systems are able to manage files of size greater than 2GB.

how are you going to create this file?

Ciao!
Claudio

Re: File size > 2GB

KapilRaj — Wed, 23 Jun 2004 07:54:50 GMT

while true
do
find / -print >> /output.file.2gb
done

When the FS reaches 100 % it will break

Kaps

Re: File size > 2GB

Jagadesh — Wed, 23 Jun 2004 08:11:50 GMT

Thanks for the reply

Iam using ext3 filesystem. How to enable file size > 2gb??

Thanks
Jagadesh

Re: File size > 2GB

Steven E. Protter — Wed, 23 Jun 2004 08:57:41 GMT

If you are using ext3 filesystem 2 GB files are already enabled.

tar or any of the compress/package tools should be able to create archives bigger than 2 GB. I've done it and I use the same OS as you.

What you have not said is what tool you are using to create the archive. If its not able to create files bigger than 2 GB or archive them you're done. Time to change methodology.

SEP

Re: File size > 2GB

Jagadesh — Wed, 23 Jun 2004 09:11:07 GMT

Thanks for ur valuable reply..
There are 2 ways that an application will enable 64bit support.

_LARGEFILE64_SOURCE
or
_FILE_OFFSET_BITS

Using the same file size of size > can be created.

I found the same in
http://www.lrz-muenchen.de/services/compute/linux-cluster/develop/LF.html

Re: File size > 2GB

Kiyoshi Miyake — Thu, 24 Jun 2004 02:51:29 GMT

hi,

how about this.

$ dd if=/dev/zero of=./foo bs=1G count=3

thx.