[Samba] Samba PDC - LDAP - Roaming profiles - Win XP - Offline Files - Slow - High Load

John H Terpstra jht at samba.org
Sat May 31 15:15:46 GMT 2003

On Sat, 31 May 2003, Daniel Zeiss wrote:

> Dear All,
> my Samba installation (see below) is
> *  _very slow_ during logon from a Win XP Workstation,
> * one Workstation produces a _high load_ of 97% on the server for ~10
> secs on a P4 2.4Ghz 512MB RAM system
> * makes it impossible to use _redirected folders_, because stupid
> Offline Files and syncronisation kicks in.
> Can you help me?
> Now to the _details_:
> I am running Samba 2.2.8a on a Debian Woody server (P4 2.4 Ghz, 512MB
> RAM, IDE RAID) which uses OpenLDAP 2.0.23 as database backend. All on a
> switched FastEthernet.
> User login (encrypted passwords), adding workstation to domain, normal
> file sharing, getting Default Profile for new users, running logon
> script works all great, but
> during login of a user to a Workstation the process is very slow. The
> default profile which gets copied is just 8MB, so its not data transfer
> which is slowing it down.
> Also when a users logs in on the samba server the load rises to 97%.
> This is just on a setup with one server and one workstation. I am
> planning of deploying 60 clients which will apparently not work with
> this setup.
> I have now clue on how to trace the problem. Can you help?
> Third problem is with the roaming profiles. The profiles itself work
> great, just I wish to redirect the Personal folder. I read the HowTo on
> the SambaDocuWebpage finding the UserShellFolder directive. I did a
> NTConfig.POL file with poledit.exe setting this folder to
> %LOGONSERVER%\%USERNAME% and also setting some permission stuff.
> The file gets read because the permission stuff is done and the Personal
> Folder is redirected to the users homedrive on the samba server, BUT
> this activates the OfflineFiles mode of WinXP and WinXP tries to
> syncronize the files on users logoff.
> I found a way to prevent this by setting in some NetCache registry
> values the "Enabled" switch to 0, so the syncronisation doesnt take
> place but still the Personal Folder will carry the symbol of a folder
> were syncronisation is enabled. Also WinXP seems to transfer constant
> data with the samba server which increases network and cpu load.
> Is there a better way of doing it?
> Is there a better way of doing policies than poledit.exe?
> On sambaXP many people spoke about the new Samba Howto. Which one is it?

It is available in rapidly changing form from:


> Is it already released?

Nope. It will be part of Samba-3 when it is released.

- John T.

> Thank you in advance
> Daniel
> P.S.: Do I see it correctly that the GPO on a Win2000/XP ADS setup are
> just specific NTConfig.POL files applied to a special workstation or
> group of workstations?

John H Terpstra
Email: jht at samba.org

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