Files over 2Gb on Red Hat 7.3 ext3?

[Nick Brennan_1]

Does anyone know if it's possible to configure an RH 7.3 ext3 filesystem to be able to handle files over 2Gb in size?

[Vitaly Karasik_1]

it works by default, isn't it?

[Steven E. Protter]

If the filesystem is bigger than 2G its autmatically enabled.

I checked my admin bible and there is no mention of special configuration required.

Best practice is ftp a file bigger than 2G to an fs that has the freespace. If there is an issue, the ftp transfer will hang or fail.

I've got a 16G fs on my Linux servers at my web hosting business and have moved big(> 2G) files on and off without changing the configuration.

SEP

[Stuart Browne]

I think a quicker (and easier) test is to just use 'dd' to create a local file:

dd bs=1M count=3000 if=/dev/zero of=some.file

create 'some.file' in the current directory of roughly 3gb in size.

It'll either work ('echo $?' = 0), or it'll spit an error ('echo $?' > 0).

[Nick Brennan_1]

Thanks all for your responses - the dd created the file fine. The problem occurs when we are trying to create an Oracle dump, I will have to look elsewhere.

[Michael Hancock]

You should either use the filesize parameter to exp for oracle >= 8.1 or use mknod

From oracle's support site


Export to several files

~~~~~~~~~~~~~~~~~~~~~~~

(Note: Not all platforms support the split "-b" option used here)

% mknod /tmp/exp_pipe p # Make the pipe

% cd /fs_with_25gig_freespace # Make sure disk has space

% split -b2047m < /tmp/exp_pipe & # Split input to 2Gb chunks

% exp user/passwd file=/tmp/exp_pipe full=y # Export to the pipe

This will split the export into several files called 'xaa', 'xab', 'xac'

all of size 2047Mb. These can be fed back into import thus:

% mknod /tmp/imp_pipe p # Make the pipe

% cd /fs_with_25gig_freespace

% cat xaa xab xac > /tmp/imp_pipe & # Put files into the pipe

% imp user/passwd file=/tmp/imp_pipe # And import

[Nick Brennan_1]

Thanks Michael, will give that a shot.