AS400 (ISERIES) FTP

[rstitzel]

I'm using FTP to send a file TO the AS400. The file is 500 megabytes in size. I'm using CuteFTP to send the file. The problem is the transfer rate is about 30k per second. This will take forever! Why would the transfer be so slow when my connection to the network is 100mpbs. Should only take about 5 minutes to send.

Any insights?

 

[flapeyre]

In my case, I have a transfer which is initiated by the AS/400. The files are text files (not binary), and the highest transfer rate I can see from last night's job was 213.109 KB/sec.

A lot depends on how capable your ISP and/or your internal network is, capacity-wise, the amount of traffic on the network/Internet when the transfer happens, firewall configuration, how TCP/IP is set up on the 400 (and on the remote machine), etc. I'm no TCP/IP expert, but those are all things you need to look at.

If you are transferring a binary file, you might want to consider having it zipped first and using PKZip for OS/400 to unzip it on the AS/400. We are in the process of implementing it for both inbound and outbound transfers (mainly for security reasons; we can password-protect the file, and the archive can be processed by practically any Zip program on the other end). It says in the manual that the maximum file size in an archive is 4GB, so you should be okay.

http://www.pkzip.com

"When once you have tasted flight, you will forever walk the Earth with your eyes turned skyward, for here you have been, and there you will always long to return."

--Leonardo da Vinci

 

[rstitzel]

The problem is that I'm FTP'ing from WITHIN my LAN. I'm not going through the INTERNET at all. I have a single switch that supports 100mps ethernet in full duplex. So I just can't understand why it takes so long to push up the file.

Since every night I ftp to the as400 to pull down files. About 2GB worth and can get them in about 10 minutes!

I guess I may have to break down and call IBM software support If anyone knows of a setting for ftp that sets the upload speed that would be very much appreciated.

Thanks for your help.

 

[flapeyre]

Try a manual transfer to the 400 with something other than CuteFTP?
"When once you have tasted flight, you will forever walk the Earth with your eyes turned skyward, for here you have been, and there you will always long to return."

--Leonardo da Vinci

 

[rstitzel]

I've done that and get the same results.

 

[flapeyre]

How is your transfer speed to another (non-AS/400) box?
"When once you have tasted flight, you will forever walk the Earth with your eyes turned skyward, for here you have been, and there you will always long to return."

--Leonardo da Vinci

 

[Bullmoose]

I FTP quite often between my AS/400s. My old 170 box takes forever to receive a file, while the newer 820 screams in comparison! Crud, even the ping times are lower to the old 170. The slowness issue I am seeing is totally related to the machine itself. Could this be an issue? Since I use the FTP app within the AS/400, I can't provide actual transfer numbers. The feeling I get as I move around my old 170 is that TCP/IP and Client Access emulation was an afterthought. This box was not built with those concepts in mind. TwinAx and dumb terminals were all it knew, with IBM creating a work around when TCP/IP becam popular.. ?