Re: Speed of FTP download was: Cumulative PTF package downloaded

Well, if you're going to test the speed of i FTP, using Fix Central is
probably not the best way to do it. Too many variables you can't control.
However, you could place some CD or DVD images on a server internal to your
network and FTP from that server to both a PC and to the i and compare the
speeds. Of course, you need to make sure the network connections are the
same speed all the way with no lesser-speed gateways/WAN links/etc. in the
mix to make it as close to identical as possible. Ideally the FTP server,
the i, and the PC were all in the same subnet.

Using straight FTP I've not noticed any major speed differences myself. But
Download Director to the PC seemed like it was faster the last time I tried
it. I'm guessing the multiple connections overcome some issues and I'm also
thinking it applies compression. I recall it listing a 1.3MBps (byte)
download speed via my at-the-time 6Mbps (bit) home Comcast connection, which
would be impossible without sustained over-utilization or compression.

On Tue, Mar 17, 2009 at 9:39 AM, <rob@xxxxxxxxx> wrote:

What you, and Scott, say are true. No question regarding that. However,
'if' the i is slower should we not give IBM the opportunity to make it
better?

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From:
"Mark S. Waterbury" <mark.s.waterbury@xxxxxxx>
To:
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Date:
03/17/2009 10:02 AM
Subject:
Re: Speed of FTP download was: Cumulative PTF package downloaded
Sent by:
midrange-l-bounces@xxxxxxxxxxxx



Hi, Rob:

When you use FTP to download directly to the IFS, all you do is add
those images to the image catalog and you are "ready to go" (LODPTF, etc.)

When you download the iso images to the PC, you must then either "burn"
them on CDs or FTP from your local PC to the IFS, in order to add them
to an image catalog, before you can issue LODPTF, etc.

Unless FTP directly to the IFS is at least twice as slow as FTP to a PC,
(which it is not, in my experience), I don't think this is an issue.

Mark

> rob@xxxxxxxxx wrote:

Has anyone done some time trials in the office between ftp from their pc

and ftp from the i to see if the pc was consistently faster than the i

on

these ptf binaries? Point being, if the i is consistently slower than
perhaps a pmr should be opened up and if the results are not what one
wants then open up a DCR.

Rob Berendt

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