Weird FS Behaviour 1

[KPKIND]

Hi *,

I have got a aix box with 4.3 on it. This system has resported FS full error on /tmp, so I had a look in to the FS to see there were 2 files of sizes 547MB & 123MB. The surprising thing is the FS capacity itself is 509MB, but how could it accomodate 670MB. Then I have moved the the file which was of 547MB to a diff FS, even then the file size remained the same, but the /tmp did not gain that space back. Pl let me know any of you had a similar exp.

4480uk# df -k /tmp
Filesystem 1024-blocks Free %Used Iused %Iused Mounted on
/dev/hd3 507904 0 100% 390 1% /tmp
4480uk# pwd
/tmp
4480uk# ls -lR|sort +4rn|head -5
-rw-rw-rw- 1 root sys 123342848 Oct 23 04:30 br4.log
-rw-r--r-- 1 root nobody 7844477 Jan 21 2005 opc-tec.log
-rw-r--r-- 1 root sys 4878336 Oct 23 04:15 env_out.txt
-rw-rw-rw- 1 root sys 4165632 Oct 23 04:11 br3.log
-rw-r--r-- 1 root sys 3739648 Oct 23 04:00 momdeliver.txt
4480uk#

TIA
KPKIND

 

[Breslau]

you may have a process that still has the file open. do you have lsof on you box? you can use that to see what's still using it.

 

[p5wizard]

Also, re the file length and the FS space:

A file's length (or the sum of all a FS's file lengths) can be greater than the FS size, if there are sparse files in the FS. A sparse file has blocks with all null-bytes which are not allocated (or were allocated, but by wiping out an in-use file, are now unallocated.)

If you have it, the fileplace command can identify the unallocated regions of a file.




HTH,

p5wizard