samba - Nov 2002 - Samba and large implementations

Hi,

we are investigating if Samba could help us to build a large 
(say very large) file server.

We are thinking OS/390, 4 Tb, 20.000 users

Are we being plain stupid, or has this been done before ?

cu,
Frank.

On Thu, 7 Nov 2002, Frank De Waelle wrote:
> we are investigating if Samba could help us to build a large
> (say very large) file server.
>
> We are thinking OS/390, 4 Tb, 20.000 users
>
> Are we being plain stupid, or has this been done before ?
Using Linux on S/390 or mainframe this can be done. Off course depending
on your exact needs. The best solution is probably using VM or LPAR's to
divide the task between a number of servers, and not use one big server.

For references you should check IBM's Linux website, they already have
done Samba on Linux/390. (ibm.com/linux)

Kind regards,
Tim

-- 
==========================================================================Tim
Verhoeven
                                Linux & Open Source Specialist
GSM : 0496 / 693 453                          + e-business solutions
Email : dj@4ict.com                           + consulting
URL : www.sin.khk.be/~dj/                     + Server consolidation
===========================================================================

On Thu, 2002-11-07 at 22:28, Frank De Waelle wrote:
> Hi,
> 
> we are investigating if Samba could help us to build a large 
> (say very large) file server.
> 
> We are thinking OS/390, 4 Tb, 20.000 users
> 
> Are we being plain stupid, or has this been done before ?
Well, I would say that is large :-).

There are some known scalability issues with Samba 2.2, --with-pam or
--with-utmp  (an n^2) problem.  You will no doubt find other issues too,
but I do believe it will be more reliant on who Linux/390 scales.

How will these users be authenticated etc?  This is the main area where
I can comment, and one of the first problems you will encounter.

I sure hope you are not putting a poor Pentium as DC :-)

Andrew Bartlett

-- 
Andrew Bartlett                                 abartlet@pcug.org.au
Manager, Authentication Subsystems, Samba Team  abartlet@samba.org
Student Network Administrator, Hawker College   abartlet@hawkerc.net
http://samba.org     http://build.samba.org     http://hawkerc.net
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