disk usage (du) result compare 2 identical file system

[Camel_1]

Hi there,

I just copied a file system from one node to another node. The file system size, VG extend size, PE size are the same. But what explain the source is a little bit bigger then the target, please see the following output


Source:
# du -sk abc
34069440 abc

Target:
# du -sk abc
34054468 abc

[Patrick Wallek · Accepted solution]

Look at the directory size itself.

Run:

ls -ld abc

on both systems and compare the sizes. Also do this for any subdirectories under 'abc'.

The directory on the source system may have grown over time, but may not need to be as large on the target due to fewer files (the directory size will grow, but never shrink).

[Kenan Erdey]

Hi,

also compare file count of two directories. there may be sparse files which you can see size in ls output. but indeed no data within.

take look at this thread.

http://h30499.www3.hp.com/t5/System-Administration/Find-sparse-file/m-p/3875418#M279127

[Camel_1]

excellent. Thanks all.