Canned Novell solution with file and record locking

Canned Novell solution with file and record locking

[Kevin Noseworthy - Specialty Software]

My current configuration

Novell 3.12 server  (PIII/500 128MB ram)
Fedora Core 1 (PIII/600 256MB ram)  -  9 users  with Putty (3 remote via 
DSL / Putty-ssh  through linux firewall)
MS-DOS V6.22
lsl v2.14
vlm v1.02

dosemu.conf  network settings:
$_pktdriver = (on)
$_ipxsupport = (on)

config.sys:
dos=high
device=c:\dosemu\ems.sys   (I put all the dosemu commands in c:\dosemu)
dos=umb
LASTDRIVE=Z    (Change this to LASTDRIVE=E  if you want to use netx
                                ( I didn't see any perceptible 
performance differences

autoexec.bat:
c:\dos\smartdrv.exe   (I don't expect this actually helps but haven't 
had a chance to test its removal
@echo off
prompt $p$g
path = c:\windows;c:\dos;c:\dosemu   (Haven't been able to use Windows 
for much and don't really care
set temp = c:\dos
cd\nwclient
vlm.bat

vlm.bat:
lredir d: LINUX\FS\${home}
lh lsl
lh vlm   (much of vlm will go high anyway but this puts the whole thing high
f:
login

net.cfg:
Link Support
          BUFFERS 4 1514
          PB BUFFERS = 0

Netware DOS Requester
           I did not make any changes in this section         


inittab:
ip:345:wait:/sbin/ipx_interface add -p eth0 etherii
ir:345:once:/usr/bin/ipx_route add 00000001 00000002 00E02950ABB4 
Note the ir: line does not work and if someone can tell me where to put 
it so it will I would appreciate it
Also, the MAC address in the ir: line may be different in your 
situation.  Right now I can either execute the ir: line as root or 
simply start dosemu as root once before any other users.  If you start 
dosemu nonroot the MAC address you need to use is included in the error 
message telling you that you need to add a route.

Note: I "do not" use pdipx or pdether
          If you unload vlm (i.e. vlm -u) you will have to quit (X) 
dosemu and start again - dosemu locks up)  takes about                3 
seconds.

Procedure (roughly):
1- I setup a small harddisk in the same box I was going to use for linux 
and installed MS-DOS6.22 with appropriate replacements of dos 
equivalents  in above config.sys and bat files and got it attaching to 
the novell server.  In vlm.bat you would also have to load ipxodi and 
netcard driver while in dos mode.

2 - Attached linux harddisk as primary master and dos harddisk as 
secondary master and edited dosemu.conf for parttion access to dos harddisk

3 - Created a /dos directory and a /dos/dosemu directory.  Setup dos 
group for /dos and dosemu group for /dos/dosemu and made all users who 
would be accesing dosemu members of both groups.  Really the /dos and 
dos group are unnecessary and I did this for reasons not germane to the 
topic at hand.  I then copied all files from the dos harddisk into 
/dos/dosemu.

4 - when launching dosemu for the first time for each user i used 
/dos/dosemu as the location of the dos files instead of the default 
which pointed to the freedos location.

Performance is approx 40% of connecting a dos box directly to the Novell 
server which you can do for local users if they need more performance.   
This setup is used for a live point-of-sale system.

Re: Canned Novell solution with file and record locking

[Enrique Baraibar]

On Fri, 16 Apr 2004 22:35:32 -0230
Kevin Noseworthy - Specialty Software <menkhor@nf.sympatico.ca> wrote:

>
>
 big snip
> 
> Performance is approx 40% of connecting a dos box directly to the Novell
> 
> server which you can do for local users if they need more performance.  
> 
> This setup is used for a live point-of-sale system.
> 

You can improve performance if you use linux + mars-nwe instead of native
NetWare. We were forced to do this for a customer (burglars stole 7
machines, including 2 servers) and speed and delay problems dissapeared.
The problem that remains is that VLM under DOSemu loses idle connections
after about 10 minutes. We have both a Cobol and a Paradox accounting apps
that work finely; and I suppose that is because they keep talking to the
server in the background.
If you need database locks and your app remains idle for more than say 5
minutes, mars-nwe is NOT the answer. Otherwise it works very well.
HTH

-- 
Enrique Baraibar

Re: Canned Novell solution with file and record locking

[Nicolai Kuntze]

Do you have the same 10 min problem with netx.exe? Is it maybe the watchdog timer? I have the problem that my app freeze from time to time. 

Yours,

Nicolai

Am Sa 17.04.2004 16:13, Enrique Baraibar <contabar@mailandnews.com> schrieb:

> On Fri, 16 Apr 2004 22:35:32 -0230
> Kevin Noseworthy - Specialty Software <menkhor@nf.sympatico.ca> wrote:
> 
> >
> >
>  big snip
> > 
> > Performance is approx 40% of connecting a dos box directly to the Novell
> > 
> > server which you can do for local users if they need more performance.  
> > 
> > This setup is used for a live point-of-sale system.
> > 
> 
> You can improve performance if you use linux + mars-nwe instead of native
> NetWare. We were forced to do this for a customer (burglars stole 7
> machines, including 2 servers) and speed and delay problems dissapeared.
> The problem that remains is that VLM under DOSemu loses idle connections
> after about 10 minutes. We have both a Cobol and a Paradox accounting apps
> that work finely; and I suppose that is because they keep talking to the
> server in the background.
> If you need database locks and your app remains idle for more than say 5
> minutes, mars-nwe is NOT the answer. Otherwise it works very well.
> HTH
> 
> -- 
> Enrique Baraibar
> -
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