We have just converted to an HP3000 979-200 from an HP3000 980-200.  Our OS went
from 5.0 (Base) to 5.5 PP 7.  We have experienced sluggishness in FTP transfers
to an IBM AS/400 since conversion.  So, a total of 3 things changed I believe.
1)New HP3000   2)New MPE/ix OS.  3)New connection to network.

We looked at the stats on the transfers.  The speed of the transfers is similar
when measured by KB/Second to transfers prior to the conversion.  The delay
seems to come immediately BEFORE the transfers.

Example:
open ##.##.##.##
user *login*
append filename1 filename2
<<<Here the delay seems to happen, previously no delay, now ~5-10 minutes>>>
quit

Sounds like a similar issue to some others referenced here.  We will continue to
monitor and test for further definition of the problem.

This isn't a critical issue for us, just remembered the discussion.

Todd Matteson
Business Application Manager
Huffy Service First
8521 Gander Creek Drive
Miamisburg, OH 45342
E-Mail:[log in to unmask]
Phone:(937) 436-5141


-----Original Message-----
From: Lee Gunter <[log in to unmask]> at HSFGATE
Sent: Wednesday, July 28, 1999 2:13 PM
To: [log in to unmask] at HSFGATE
Subject: FTP degradation: HP to IBM (was Re: [HP3000-L] FTP Transfer


We've had a similar remarkable loss of throughput, but between the
corporate IBM mainframe and our HP 3000/996-800.  Last month-end saw a
10-to-15-fold increase in transmission times for a few large files (10-15
hours *each*, vs. 1-1.5 hours each).  Apparently, this occurs only when the
transmission is served by a new 100MB OSA TCP/IP adapter in the mainframe
-- apparently, the originator of the transfer has no bearing on the
problem.  The claim is that this interface was in place during the
month-end close prior to last month-end, and all worked fine; ergo,
something *must* have changed on the HP side.  We've loaded no patches, no
new releases, and made no network configuration changes for several months.
A network analyst in our corp. office contended that he could 'see' packets
arriving at the HP, but nothing being returned; yet, a link trace,
according to the HPRC, shows acknowledgements leaving the system promptly
in response to each packet from the mainframe.

Has anyone else experienced this kind of degradation in a similar
environment?  If so, how did you solve it, if at all?

TIA,

Lee Gunter
============================================================
Supervisor, TRG HP/MPE Systems
The Regence Group
Phone:                   503.375.4498
Fax:                     503.375.4401
E-mail:             [log in to unmask]
============================================================
All opinions expressed are just that -- opinions.  They're
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