× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  • Subject: Re: How long to FTP a SAVF
  • From: Leo Lefebvre <leo@xxxxxxxxx>
  • Date: Sun, 28 Jan 2001 15:39:05 -0500

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
> >
> >
> > +---
> > | 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.
> > | To unsubscribe from this list send email to
> MIDRANGE-L-UNSUB@midrange.com.
> > | Questions should be directed to the list owner/operator:
> david@midrange.com
> > +---
> >
>
> +---
> | 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.
> | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
> | Questions should be directed to the list owner/operator: david@midrange.com
> +---

--

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.
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---

As an Amazon Associate we earn from qualifying purchases.

This thread ...

Follow-Ups:
Replies:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.