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Disk Usage in Detail !!

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Operating Systems AIX Disk Usage in Detail !!
# 1  
Old 04-28-2014
Disk Usage in Detail !!
Hi ALL,

I always use du command for analyzing diskusage to housekeep a filesystem.

Can somebody tell the where first row filesize resides?



Code:
 
 
bash-3.2# df -gt /tmp
Filesystem GB blocks Used Free %Used Mounted on
/dev/hd3 16.50 10.01 6.49 61% /tmp
bash-3.2#
 
bash-3.2# pwd
/tmp
bash-3.2#
 
bash-3.2# du -max | sort -nr | head -30
3197.21 . ----------------------------->>>> location? i am sure its not totalsize for the current filesystem. ( 3GB + 7GB Other files= Used)
1685.11 ./dsmsched.log
263.16 ./app123.log
179.67 ./OraInstall2012-07-31_04-58-04AM
179.67 ./OraInstall2012-07-31_04-31-34AM
175.96 ./OraInstall2012-07-25_04-13-05AM
175.96 ./OraInstall2012-07-25_04-04-45AM
153.48 ./OraInstall2012-07-31_04-58-04AM/jdk
153.48 ./OraInstall2012-07-31_04-31-34AM/jdk
153.48 ./OraInstall2012-07-25_04-13-05AM/jdk
153.48 ./OraInstall2012-07-25_04-04-45AM/jdk
146.46 ./OraInstall2012-07-31_04-37-01AM

Thanks,
Thala
Last edited by Thala; 04-28-2014 at 02:25 AM.. Reason: COde
# 2  
Old 04-28-2014
Maybe there is some dead process still keeping a handle open there; check this thread out:
https://www.unix.com/aix/234813-file-...t-free-du.html
Last edited by zaxxon; 04-28-2014 at 04:13 AM.. Reason: rephrasing
# 3  
Old 04-28-2014
Remember that the output is cumulative for directories. If you have a directory of five files, each being 10M, then the directory will be listed as 50M.



Robin
# 4  
Old 04-28-2014
It's the sum of all subdirectories plus the files in the uppermost directory itself.
# 5  
Old 04-28-2014
I suggest you do it this way instead:

Code:
du -ks * | sort -rn

This will show you the files/directories in the current directory sorted by size (in kB). Once you identify the biggest (or the most promising) directory you switch there and apply the same command again, etc., ....

Here is an example:

Code:
# pwd
/opt

# du -ks * | sort -rn
11520   IBMinvscout
9596    admin
4104    freeware
1604    Tivoli
208     perl
80      ibm
20      hsc
4       mcr
4       RPM_inst_root
0       lost+found
0       csm

# cd IBMinvscout

# du -ks * | sort -rn
11508   bin
12      sbin

Notice that "11508+12" is "11520", as displayed above.

I hope this helps.

bakunin
# 6  
Old 05-02-2014
Thanks All,
BTW its solved by killing the process.
Note: Dont kill the critical process as it may halt your production.

Here it is,

the file dsmsched.log is used by a backup process.
And instead of Nulling that file i removed and created new file.
This is the problem caused.

So i did

fuser -dV /tmp

it listed open files with process IDs.

Then i checked the size which is holding that backup process.
Killed that process and restarted the services.
I got my free space back !!!

As its an baclient backup process i killed and solved or else it would be a problem for me.


Thanks,
Thala
# 7  
Old 05-02-2014
It happens from time to time that dsmsched goes a bit nuts... and is very verbous for peanuts most time... ( look at its content ot convince yourself...) so when it does become a nuisance ( making backups fail ... Yes it does! ) stop it and relaunch it if that fails only should you kill it, after having removed or zeroed the logfile
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