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Old 08-03-2017, 12:56 PM   #1
Registered: Feb 2011
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Smile Files on one partition affect another partition

Hello, someone answer a question, please. Have a / partition that sometimes reaches 100 percent full. du -b does not find large files on / Killing files on separate partition /nsm usu solves issue. Lots of big log files on /nsm. Why would that be? Below is a hint of what's causing problem. Why does data on one partition show up on another? Has anyone ever seen this?

On corporate servers, have this partitioning, note that /nsm is a separate partition from /

Filesystem Size Used Avail Use% Mounted on
/dev/sda7 15G 9.4G 4.1G 71% /
/dev/mapper/nsm 13T 1.1T 12T 9% /nsm <<<<<<<<< encrypted partition

Now, running this command, below see a symlink between / and /nsm

ls -l /pcap
lrwxrwxrwx 1 root root 26 Apr 2 2016 INI -> /nsm/sensors/INI/pcaplogs/


Last edited by hokie1999; 08-03-2017 at 12:57 PM.
Old 08-03-2017, 01:53 PM   #2
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Originally Posted by hokie1999 View Post
ls -l /pcap
lrwxrwxrwx 1 root root 26 Apr 2 2016 INI -> /nsm/sensors/INI/pcaplogs/
A symlink in that direction is not the problem. Symlinks within /nsm with a target back on the root filesystem could be the issue.

Try this. First, "cd" to the directory that holds one of the big files that seem to be the issue. Then run "df ." to see what filesystem actually holds that directory.
Old 08-03-2017, 03:34 PM   #3
Registered: Feb 2011
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Thanks. df, du, find all tell same story. Problem is fixed, so can't look back. Only other symlink in /nsm points from a directory in /nsm to another directory in /nsm. Nothing that points back to /.

Only the symlink provided above is the one link between the two partitions: / that has an issue and /nsm that appears to be causing it.

BTW, I did not mention, this is CentOS 7


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