You are exactly right!
Their choice of backup windows makes using these settings very tricky! 
We use compression on win95 workstations at night with good results.
We tested everything in a controlled lab and then in a limited pilot
before rollout.

Measure twice, cut once!
CR

________________________
Cris Robinson
Senior Technical Analyst
Desktop Services technical Support
Liberty Mutual Insurance
603.431.8400.54837
cris.robinson AT libertymutual DOT com

> -----Original Message-----
> From: Nicholas, Murray, Haltek/AU [SMTP:MurrayNi AT HALTEK.COM DOT AU]
> Sent: Tuesday, January 20, 1998 4:48 PM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: Reduce network overload.
> 
> I would be VERY careful about using compression in the opt file.  When
> 
> I used it on an NT client the backup times increased by a factor of 
> about 10!  Obviously situations vary but I would check this parameter 
> out in a carefully controlled test environment.  Compression uses CPU 
> cycles and your active users would really prefer that these cycles 
> were directed to running their office/business applications.
> 
> Murray Nicholas
> IT Systems Consultant
> Galeforce Information Services Pty Ltd
> email:  murray AT galeforce.bu.aust DOT com
> 
> ----------
> From:  Robinson, Cris[SMTP:Cris.Robinson AT LIBERTYMUTUAL DOT COM]
> Sent:  Wednesday, 21 January 1998 5:21
> To:  ADSM-L AT VM.MARIST DOT EDU
> Subject:  Re: Reduce network overload.
> 
> Interesting -
> Strange that you do not want to keep the pc's running at night. Thats
> the BEST time to do backups!
> 
> You may want to set compression on in the opt file. This will send 
> data
> across the wire in a more compact form. you can also use
> slowincremental, reduce the tcpwindowsize.
> 
> Now you do realize that backups during the day will slow the users 
> down
> during the day if they happen to be working at the same time. Good 
> luck!
> 
> ________________________
> Cris Robinson
> Senior Technical Analyst
> Desktop Services technical Support
> Liberty Mutual Insurance
> 603.431.8400.54837
> cris.robinson AT libertymutual DOT com
> 
> > -----Original Message-----
> > From: Boireau, Eric (MED-Cap Gemini) 
> [SMTP:BOIREER AT EUROMSX.GEMSE DOT FR]
> > Sent: Tuesday, January 20, 1998 1:20 PM
> > To:   ADSM-L AT VM.MARIST DOT EDU
> > Subject:      Reduce network overload.
> >
> > Hello,
> > We want to  backup all of our PC with ADSM (1000 to 2000PC). We 
> don't
> > to
> > do this during the night because most of the PC will be down.
> > I want to reduce the netword load on client side, ether you reduce 
> the
> > number of max sessions, the last session will take all of bandwith. 
> I
> > used also the option the reduce memory.
> > The idea is to stop network usage to a max value.
> > If anybody have some idea !
> >
> > Thanks !
> >
> > > g          GE Medical Systems
> > > __________________________________
> > > Eric Boireau                                                GITS
> > > Unix / NT  System Engineer
> > >
> > > GE Medical Systems S.A
> > > 283, rue de la Minière
> > > 78533 BUC Cedex France
> > > Tél: (33) 01 30 70 39 51,  DC: 8*644 3951
> > > Fax: (33) 01 30 70 39 20, DC: 8*644 3920
> > > mailto:boireer AT euromsx.gemse DOT fr
> > >
> > > Salutations / Best Regards
> > >