Tar files bigger than original directory.

[faze]

Hi

It seem like the tar file bigger than the original directory sizes. My tar files size=2GB but my directory only 900mb in total. This does look right. doesn't it?

[Muthukumar_5]

What you are getting for this?

a) du -ks /directory

how did you use tar command execution?

--
Muthu

[faze]

Hello,

I'm getting:

$ du -sk
951574 /app/ldap/5.2

[Muthukumar_5]

$ du -sk
951574 /app/ldap/5.2

>>>

~ 930 MB. Ok. Try this,

$ tar -cvf /tmp/trial.tar /app/ldap/5.2
$ du -ks /tmp/trial.tar

what are you getting now?

--
Muthu

[V. Nyga]

Hi,

it seems like you wrote your tar file in the same directory, that you wanted to tar.
So the tar command added the comlete tar file to your tar file.
So you've a file with the double size.
Look for the same name inside the tar file.
You can check it with 'tar tvf '

HTH
Volkmar

[Antonio Cardoso_1]

Hi,

what options do you use in your tar command?
If using -h option (follow links) and the source directory contains links, this could explain differences.

find -type f

to look for links

antonio.

[Peter Godron]

faze,
I would agree with Antonio's analysis.

The tar command would not back up its own tar output file.
A list of files to be backed up is obtained before the tar starts.

I have done a very quick check with tar and the logical links would be backed up.

[Radhakrishnan Venkatara]

No it will add the tar file also into the archive. Tar used in SUN will be handled wisely it won't add it. But HP adds it.It is tested.

[V. Nyga]

Thanks Radhakrishnan :-)

I've enough experience with my own users and also external users sending me such tar files.
Of course it can also be a backup of links.
The best would be faze tells us which command in which directory he used.

Peace
V.

[Peter Godron]

log of my tar test:
# cd test
# ll
total 0
# touch file1
# touch file2
# ll
total 0
-rw-rw-rw- 1 root sys 0 Mar 28 10:33 file1
-rw-rw-rw- 1 root sys 0 Mar 28 10:33 file2
# tar -cvf x.tar *
a file1 0 blocks
a file2 0 blocks
# tar -tvf x.tar
rw-rw-rw- 0/3 0 Mar 28 10:33 2006 file1
rw-rw-rw- 0/3 0 Mar 28 10:33 2006 file2
# ll
total 32
-rw-rw-rw- 1 root sys 0 Mar 28 10:33 file1
-rw-rw-rw- 1 root sys 0 Mar 28 10:33 file2
-rw-rw-rw- 1 root sys 10240 Mar 28 10:33 x.tar

Seems x.tar was not backed up into x.tar