[Fwd: Samba servers and Mac Finder - minimum file size 1Mb]

James Peach jorgar at gmail.com
Mon Jul 19 21:47:18 MDT 2010

On 19 July 2010 18:45, Christopher R. Hertel <crh at ubiqx.mn.org> wrote:
> Quick question (for the Apple folk, primarily):  If the message copied below
> is correct, the Macintosh Finder reports the allocated rather than the
> actual size of files on an SMB share.  Is that intentional?


> Just curious.

Supposedly it's because when floppy disks were 800k and block sizes
were 4k it was hard to see where all your disk space went. If you do a
cmd-i on the file the info windo will show you both the allocated size
and the data size.

> The message is from one of the administrator mailing lists at the University
> at which I used to work.
> Chris -)-----
> -------- Original Message --------
> Subject: Samba servers and Mac Finder - minimum file size 1Mb
> Date:    Mon, 19 Jul 2010 16:49:26 -0500
> One of my users noticed that the Mac OS X finder was reporting a minimum
> file size of 1Mb for files on Samba share.
> After some searching, I found that the Samba server has an "allocation
> roundup size" parameter that controls the file allocation reported to
> clients.
> The default 1Mb block size was chosen by Samba to improve performance of
> Windows clients. Setting this value to zero in the smb.conf makes file
> sizes be reported much more accurately!
> --
> "Implementing CIFS - the Common Internet FileSystem" ISBN: 013047116X
> Samba Team -- http://www.samba.org/     -)-----   Christopher R. Hertel
> jCIFS Team -- http://jcifs.samba.org/   -)-----   ubiqx development, uninq.
> ubiqx Team -- http://www.ubiqx.org/     -)-----   crh at ubiqx.mn.org
> OnLineBook -- http://ubiqx.org/cifs/    -)-----   crh at ubiqx.org

James Peach | jorgar at gmail.com

More information about the samba-technical mailing list