Solaris

Hi,
On Solaris 5.10, I have a following mount point:

/dev/dsk/emcpower0a 492G 369G 118G 76% /u02

In /u02, from the du -h command, I can see that only 110G is used by couple of directories. I am wondering where the rest of 259G has gone? Any ideas please?

How can I check that are there any hidden files and what's there size?
How can we get top 5 biggest directories size wise?

regards

The usual reason is deleted but still open files.

Please let me know how I can check that, and how to delete those files?

regards

You cannot deleted them as they are already deleted. To recover the size they use, you need to stop (or restart) all the applications that have them open.

Code:

fuser /u02

might help identifying these applications.

fuser /u02 is just showing me two processes, and one is oracle listener and the other is passwd.

Any other ideas please?

regards

I don't think that "du -h" shows you the size or any information about hidden file or directory.So, may be there is some large hidden file or directory containing large files.

You can have a look at these processes open files with:

Code:

pfiles <pid> ...

For each file descriptor used by the process, look for S_IFREG entries where the filename isn't shown like the next one. That is characteristic of a deleted still open file.

Code:

   0: S_IFREG mode:0644 dev:559,2 ino:1026863754 uid:10000 gid:10000 size:1048576
      O_RDONLY|O_LARGEFILE

Non deleted files will show the file path and offset:

Code:

   0: S_IFREG mode:0644 dev:559,2 ino:1026863754 uid:10000 gid:10000 size:1048576
      O_RDONLY|O_LARGEFILE
      /tmp/a/1meg
      offset:0

---------- Post updated at 07:06 ---------- Previous update was at 07:04 ----------

What makes you think that ? Hidden files and directories, i.e. those which have a name starting with a dot are definitely taken into account by "du".

---------- Post updated at 07:08 ---------- Previous update was at 07:06 ----------

Sure. There might be an overlay mount on a subdirectory of /u02 that wasn't empty.
What says:

Code:

df -k | grep /u02