Problem with OS X file permissions on devices running other file system than "hfs"

Hi folks,

sorry for this detailed thread, but i tryed to gather all required information.

I am experiencing a total file / folder permission mess when i am using "rsync" to mirror folders from OS X to a NAS.

When i create a file test.rtf in OS X, the file premission looks like this:

8 -rw-r--r-- 1 flo staff 331 7 Mär 19:16 test.rtf

When i copy this file via finder to a OS X Extended (Journaled) formated firewire harddisc (hfs), the permission looks like:

8 -rw-r--r-- 1 flo staff 331 7 Mär 19:16 test.rtf

all cool.

When i copy this file via finder to a XFS formatted NAS (OS X interprets NAS's file system as a "smbfs"), the permission looks like:

2 -rwxrwxrwx 1 flo staff 331 7 Mär 19:16 test.rtf*

super uncool.

Now using rsync:

rsync'ing the initial file test.rtf from OS X to OS X Extended (Journaled) formated firewire harddisc, the permission looks like:

...flo$ rsync -av file-permissions-test/ /Volumes/officeWD/file-permissions-test/

building file list ... done

./

test.rtf

sent 471 bytes received 48 bytes 1038.00 bytes/sec

total size is 331 speedup is 0.64

8 -rw-r--r-- 1 flo staff 331 7 Mär 19:16 test.rtf

all cool.

rsyncing the initial file from OS X to to a XFS formatted NAS, the permission looks like:

2 -rwxrwxrwx 1 flo staff 331 7 Mär 19:16 test.rtf*

super uncool. (at least rsync and the finder copy operation does the same)

I assume the changed rights / permissions has to do with how a drive is formatted (hfs, ntfs, ext3) etc.?

When i sync to a linux on ext3 it the same problem.

So, is this all about file system, and will this problem be solved using a Time Capsule (is this thing running hfs and can i access it via network?)?

thank you!