Originally posted by: aravinthsamy

While executing the gzip to compress the 10GB file, it has been failed. Got below error. Please help me on how to fix this error or provide another command to compress 10GB file.

1. gzip -f coldbackup_281109.tar

gzip: coldbackup_281109.tar.gz: Invalid file system control data detected
Thanks in advance
Aravinth.V
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Originally posted by: j.gann

the filesystem wants to be unmounted and fsck'ed

I'd start with
man fsck
fsck -p yourfs
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Originally posted by: aravinthsamy

But i can gzip other tar files. What will be the cause for this error ?

1. ls -ltr

total 24947616
drwxr-xr-x 2 oracle dba 256 Jul 1 2009 lost+found
drwxr-xr-x 5 oracle dba 256 Aug 27 2009 oradata
-rw-r--r-- 1 oracle dba 0 Jan 25 mkdir te
-rw-r--r-- 1 oracle dba 1855255115 Feb 10 22:42 oldbackup_230110.tar.gz
-rw-r--r-- 1 oracle dba 307718501 Feb 10 22:54 Year_2009_bkp.tar.gz
-rw-r--r-- 1 oracle dba 10610196480 Feb 15 08:15 coldbackup_281109.tar
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Originally posted by: j.gann

now make a guess. maybe your filesystem does not store all the files in the same place? maybe only data structures dealing with the 1 file are corrupted? its not gzip. try a cat coldbackup.tar > /dev/null
any message?
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Originally posted by: aravinthsamy

I had moved the file to another filesystem and gzipped it. It is compressed fine. But cannot find the root cause of the error. Thanks gann for ur help
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