Re: du returns a diff size to ls.


That's perfect Lamar,

many thanks.

Bruce Whittaker,
CASS Support,
Extension 34193
External (02) 9269 4193.





Lamar Saxon <Lamar.Saxon@xxxxxxxxxxxxxxx>
Sent by: IBM AIX Discussion List <aix-l@xxxxxxxxxxxxx>
30/06/2006 00:47
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IBM AIX Discussion List <aix-l@xxxxxxxxxxxxx>


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Re: du returns a diff size to ls.







This might help:

http://www-1.ibm.com/support/docview.wss?rs=111&context=SWG10&q1=sparse+files&uid=isg3T1000145&loc=en_US&cs=utf-8&lang=en


From: IBM AIX Discussion List [mailto:aix-l@xxxxxxxxxxxxx] On Behalf Of
Bruce Whittaker
Sent: Thursday, June 29, 2006 2:19 AM
To: aix-l@xxxxxxxxxxxxx
Subject: du returns a diff size to ls.


Hi all,

a quick question...using AIX 5.2 ML7

I have a sybase device file (a sparse database file) and if I use ls -l it
returns the correct size of the file.
If I use a du -sk on the file, it returns a much smaller size (the actual
size used?)

ie,

bruce@cass4$ ls -l
-rw-r--r-- 1 syadmin sybase 62914560 Jun 27 16:38 master.dat

bruce@cass4$ du -sk *
9184 master.dat (Size is 9Meg here...)

Now... I gzipped the file, transferred it using rcp to another machine and
unzipped it. du now returns a value that matches the size found using ls.

bruce@cass5$ ls -l
-rw-r--r-- 1 syadmin sybase 62914560 Jun 27 16:38 master.dat

bruce@cass5$ du -sk *
61440 master.dat t (Now 60 Meg...as per the ls
-l)


I find this a little confusing and I'm wondering if anyone can explain
what I'm seeing?

Bruce Whittaker,
CASS Support,

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