• Subject: Re: How long to FTP a SAVF
  • From: "Patrick Townsend" <patownsend@xxxxxxxxxxxxxx>
  • Date: Sun, 28 Jan 2001 21:00:17 -0800
  • Organization: Patrick Townsend & Associates Inc

3Coms, 10/100. The CISC runs at 10, of course.
Patrick
---
IBM AS/400 communications, FTP automation, and eCommerce
software and consulting services.

http://www.patownsend.com

----- Original Message -----
From: "Leo Lefebvre" <leo@tug.on.ca>
To: <MIDRANGE-L@midrange.com>
Sent: Sunday, January 28, 2001 12:39 PM
Subject: Re: How long to FTP a SAVF


> Hi Patrick
>
> Patrick Townsend wrote:
>
> > Leo,
> >
> > I wouldn't be too ready to blame this on the AS/400 FTP support. We do
FTPs
> > between CISC (V3R2, D20) and RISC quite frequently. And the save files
are a
> > *lot* bigger. I don't ever recall getting this poor through-put. It is
true
> > that FTP and TCP services on the CISC boxes are implemented "above the
OS",
> > and IBM improved both protocol and server performance in RISC, but you
> > shouldn't be seeing this type of performance.
> >
>
> What is your network topology? What speed are your hubs/switches?
>
>
> >
> > Some things to look at:
> >
> > 1. Are you running the FTP transfer in batch? If so, what priority does
it
> > have? How much pool memory, etc.? If it is running in batch and other
> > applications are running at a higher priority you will see degraded
> > performance.
> >
>
> The job was running in interactive mode and no other users were signed on
> (Saturday afternoon and evening)
>
> >
> > 2. What do you have defined for the frame size on the Ethernet line?
Very
> > small frame sizes can degrade FTP performance.
> >
>
> Where do you determine the frame size? In the SSAP list? If so, which SSAP
should
> I use? Defined are 04, 06, 08, 12, AA, C8 and DC.
>
> Leo
>
> > ----- Original Message -----
> > From: "Leo Lefebvre" <leo@tug.on.ca>
> > To: "midrange-l" <MIDRANGE-L@midrange.com>
> > Sent: Saturday, January 27, 2001 6:51 PM
> > Subject: How long to FTP a SAVF
> >
> > > I thought I had a good plan:
> > > 1) Save to *SAVF on System 1 (V3R2), Model D60;
> > > 2) FTP *SAVF to System 2 (V4R5) Model 720;
> > > 3) Restore *SAVF to System2.
> > >
> > > The two systems are side by side, connected through a 10 mg hub.
> > > Testing the process take EXTREMELY long time.The *SAVF contains
905,985
> > > records (records are 528 long). 9 hours after the start of the process
> > > the job display shows only 50,000 I/Os.
> > > I can FTP between my PC and the server at a much faster rate through a
> > > simple modem-to-modem connection (capable of 56k).
> > >
> > > What am I missing?
> > > --
> > >
> > > Leo Lefebvre
> > > President
> > > Toronto Users Group for Midrange Systems
> > > Visit our home page at <http://www.tug.on.ca>
> > > Ph: (416) 606-5960   ---   Fx: (416) 495-0100
> > > mailto:leo@tug.on.ca
> > >
> > >
> > > +---
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>
> --
>
> Leo Lefebvre
> President
> Toronto Users Group for Midrange Systems
> Visit our home page at <http://www.tug.on.ca>
> Ph: (416) 606-5960   ---   Fx: (416) 495-0100
> mailto:leo@tug.on.ca
>
>
> +---
> | This is the Midrange System Mailing List!
> | To submit a new message, send your mail to MIDRANGE-L@midrange.com.
> | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
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MIDRANGE-L-UNSUB@midrange.com.
> | Questions should be directed to the list owner/operator:
david@midrange.com
> +---
>

+---
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