Discussion:
FTP client connection timeout
(too old to reply)
justin
2004-06-04 20:42:32 UTC
Permalink
Is there a way to make the ftp client wait for a connection longer
before timing out? We are running v5r1 and are connecting to a number
of remote sites over a satellite link. Due to the latency issues with
satellite it takes several seconds for the remote site to respond but
the ftp client on the AS400 pops back almost immediately with a
message that reads:

"No response received from FTP server.
No response from remote host; all connections closed."

Eventually I am able to connect, so I know my routing is correct.
Ping responds adequately. On my windows and linux systems the ftp
client will wait for a response for the remote site, it usually takes
about 5 seconds but it connects every time. I just need the AS400 to
wait a little longer for the host to respond before it times out.

Any help is greatly appreciated.

Justin
PAUL RAULERSON
2004-06-04 21:00:05 UTC
Permalink
I have a PCI SCSI card from an RS/6000 and wondered if it might work in one
of the PCI slots
on a Model 150. It would be VERY nice to get 4mm tape on the machine as well
as perhaps, some
additional DASD.

The tapes are from a P/390, which is basically a S/390 chipset inside a PC
running OS/2. I can read them
easily enough on a RS/6000, but the tape drive in the 150 takes some kind of
strange carts - they look
a little like streched out, flattened 3480 tapes. Alternately, I guess I
could find a way to copy the tapes
to the media the 400 wants to use, or I could FTP them over.

Additional DASD is a bit a question on this sweet little machine though. It
already has 4 4G+ drives in
in, and with the tape and CD, I doubt the internal SCSI controller can
handle any more. I thought there might
be an external SCSI connection, but there is only the workstation controller
port, an RJ45 and AUI port, and something that looks like a mini high
denisity port. I have no idea what it is or what it is for. :)

Obviously, this is a small personal machine, and I am really enjoying it,
but I can astound myself with
my own ignorance. Any advice, or references to the hardware documenation on
this system would
be greatly appreciated. :)

-Paul
Jonas Temple
2004-06-05 02:46:08 UTC
Permalink
Paul,

You can find the hardware documentation (including available
disk/memory options) at:

http://www-1.ibm.com/servers/eserver/iseries/hardware/handbook_archive/5486m150.htm

According to the docs, the 150 can take 4 6713 8G drives so you could
swap out all the 4s for 8s and double your disk space. Definitely
take a look on eBay and search for "IBM 6713". You'll find them
anywhere from $100 and up. I found a source here locally where I
could buy the 6713s for $75 so be sure to shop for the best price.
Memory should also be readily available on the used market.

I have my own 170 and added 2 additional disk drives and 2 memory
chips and I did it myself. It's not hard!

Good luck!

Jonas
Post by PAUL RAULERSON
I have a PCI SCSI card from an RS/6000 and wondered if it might work in one
of the PCI slots
on a Model 150. It would be VERY nice to get 4mm tape on the machine as well
as perhaps, some
additional DASD.
The tapes are from a P/390, which is basically a S/390 chipset inside a PC
running OS/2. I can read them
easily enough on a RS/6000, but the tape drive in the 150 takes some kind of
strange carts - they look
a little like streched out, flattened 3480 tapes. Alternately, I guess I
could find a way to copy the tapes
to the media the 400 wants to use, or I could FTP them over.
Additional DASD is a bit a question on this sweet little machine though. It
already has 4 4G+ drives in
in, and with the tape and CD, I doubt the internal SCSI controller can
handle any more. I thought there might
be an external SCSI connection, but there is only the workstation controller
port, an RJ45 and AUI port, and something that looks like a mini high
denisity port. I have no idea what it is or what it is for. :)
Obviously, this is a small personal machine, and I am really enjoying it,
but I can astound myself with
my own ignorance. Any advice, or references to the hardware documenation on
this system would
be greatly appreciated. :)
-Paul
Paul Raulersonv
2004-06-05 14:15:06 UTC
Permalink
Thanks! I have printed that reference, and greatly appreciate it. :)

-Paul
Post by Jonas Temple
Paul,
You can find the hardware documentation (including available
http://www-1.ibm.com/servers/eserver/iseries/hardware/handbook_archive/5486m150.htm
According to the docs, the 150 can take 4 6713 8G drives so you could
swap out all the 4s for 8s and double your disk space. Definitely
take a look on eBay and search for "IBM 6713". You'll find them
anywhere from $100 and up. I found a source here locally where I
could buy the 6713s for $75 so be sure to shop for the best price.
Memory should also be readily available on the used market.
I have my own 170 and added 2 additional disk drives and 2 memory
chips and I did it myself. It's not hard!
Good luck!
Jonas
Post by PAUL RAULERSON
I have a PCI SCSI card from an RS/6000 and wondered if it might work in one
of the PCI slots
on a Model 150. It would be VERY nice to get 4mm tape on the machine as well
as perhaps, some
additional DASD.
The tapes are from a P/390, which is basically a S/390 chipset inside a PC
running OS/2. I can read them
easily enough on a RS/6000, but the tape drive in the 150 takes some kind of
strange carts - they look
a little like streched out, flattened 3480 tapes. Alternately, I guess I
could find a way to copy the tapes
to the media the 400 wants to use, or I could FTP them over.
Additional DASD is a bit a question on this sweet little machine though. It
already has 4 4G+ drives in
in, and with the tape and CD, I doubt the internal SCSI controller can
handle any more. I thought there might
be an external SCSI connection, but there is only the workstation controller
port, an RJ45 and AUI port, and something that looks like a mini high
denisity port. I have no idea what it is or what it is for. :)
Obviously, this is a small personal machine, and I am really enjoying it,
but I can astound myself with
my own ignorance. Any advice, or references to the hardware documenation on
this system would
be greatly appreciated. :)
-Paul
Newbie_Neil
2004-06-05 11:20:12 UTC
Permalink
Hi Paul

Just be aware that IIRC the earliest models only supported 4gb disks.

Neil
Paul Raulersonv
2004-06-05 14:17:16 UTC
Permalink
Are they actually looking for some kind of identity stamp on the DASD, or would
they happily use any SCSI-3 disk? I mean, it looks like a pretty generic SCSI
controller in there to me, and I have some nice 18gb IBM disks around here
somewhere...

-Paul
Post by Newbie_Neil
Hi Paul
Just be aware that IIRC the earliest models only supported 4gb disks.
Neil
Jonas Temple
2004-06-06 00:23:53 UTC
Permalink
Paul,

I asked that same question when I was looking for DASD for my 170. My
understanding is that the drives MUST be low level formatted for an
AS/400. Off the shelf SCSI drives won't work. That being said, it
might still be possible but I don't know how. If you figure it out,
let me know!

Jonas
Post by Paul Raulersonv
Are they actually looking for some kind of identity stamp on the DASD, or would
they happily use any SCSI-3 disk? I mean, it looks like a pretty generic SCSI
controller in there to me, and I have some nice 18gb IBM disks around here
somewhere...
-Paul
Post by Newbie_Neil
Hi Paul
Just be aware that IIRC the earliest models only supported 4gb disks.
Neil
Paul Raulersonv
2004-06-06 03:19:44 UTC
Permalink
Well, a lot of midrange machines did that, in an attempt to manage quality, and also as a
revenue stream enhancer. EMC was really bad about doing that too. Perhaps I can find an old AS/400 disk and dissect it to find out
what the real story is.

I guess in the meantime, I can explore a bit and see if there is an NFS client for this beastie. I don't trust these funny looking
tapes all that much!!

-Paul
Post by Jonas Temple
Paul,
I asked that same question when I was looking for DASD for my 170. My
understanding is that the drives MUST be low level formatted for an
AS/400. Off the shelf SCSI drives won't work. That being said, it
might still be possible but I don't know how. If you figure it out,
let me know!
Jonas
Post by Paul Raulersonv
Are they actually looking for some kind of identity stamp on the DASD, or would
they happily use any SCSI-3 disk? I mean, it looks like a pretty generic SCSI
controller in there to me, and I have some nice 18gb IBM disks around here
somewhere...
-Paul
Post by Newbie_Neil
Hi Paul
Just be aware that IIRC the earliest models only supported 4gb disks.
Neil
Robert Comer
2004-06-07 14:09:06 UTC
Permalink
I don' know about these particular disks, but the ones I've seen have more
than just a different ID, they have different microcode than off the shelf
drives.
Post by Paul Raulersonv
I guess in the meantime, I can explore a bit and see if there is an NFS
client for this beastie. I don't trust these funny looking
Post by Paul Raulersonv
tapes all that much!!
Depending on the OS400 version, it has an NFS client/server built in, but it
somewhat limited in what it can do. (no save's or restores from it for
instance, but cpy's work.)

- Bob Comer
Post by Paul Raulersonv
Well, a lot of midrange machines did that, in an attempt to manage quality, and also as a
revenue stream enhancer. EMC was really bad about doing that too. Perhaps
I can find an old AS/400 disk and dissect it to find out
Post by Paul Raulersonv
what the real story is.
I guess in the meantime, I can explore a bit and see if there is an NFS
client for this beastie. I don't trust these funny looking
Post by Paul Raulersonv
tapes all that much!!
-Paul
Post by Jonas Temple
Paul,
I asked that same question when I was looking for DASD for my 170. My
understanding is that the drives MUST be low level formatted for an
AS/400. Off the shelf SCSI drives won't work. That being said, it
might still be possible but I don't know how. If you figure it out,
let me know!
Jonas
Post by Paul Raulersonv
Are they actually looking for some kind of identity stamp on the DASD, or would
they happily use any SCSI-3 disk? I mean, it looks like a pretty generic SCSI
controller in there to me, and I have some nice 18gb IBM disks around here
somewhere...
-Paul
Post by Newbie_Neil
Hi Paul
Just be aware that IIRC the earliest models only supported 4gb disks.
Neil
2004-06-07 09:49:18 UTC
Permalink
Post by justin
Is there a way to make the ftp client wait for a connection longer
before timing out? We are running v5r1 and are connecting to a number
of remote sites over a satellite link. Due to the latency issues with
satellite it takes several seconds for the remote site to respond but
the ftp client on the AS400 pops back almost immediately with a
"No response received from FTP server.
No response from remote host; all connections closed."
Eventually I am able to connect, so I know my routing is correct.
Ping responds adequately. On my windows and linux systems the ftp
client will wait for a response for the remote site, it usually takes
about 5 seconds but it connects every time. I just need the AS400 to
wait a little longer for the host to respond before it times out.
Any help is greatly appreciated.
Justin
Check the help for debug. You have to page through one usage to:
DEBug T1 | T2 ^ value ]
--
Jonathan Bailey.
justin
2004-06-07 15:27:58 UTC
Permalink
<snip>
Post by
DEBug T1 | T2 ^ value ]
Jonathan,

Thanks for your response. I guess I should clarify a little more.
The problem is occuring when I first try open the ftp connection. I
type ftp '###.###.###.###' and it immediately times out. Once I am
connected it responds fine. I need it to wait longer before timing
out on making the initial connection. It appears that the debug T1|T2
[value] options is more useful once you have already connected.

Thanks,
Justin
2004-06-07 16:25:14 UTC
Permalink
Post by justin
<snip>
Post by
DEBug T1 | T2 ^ value ]
Jonathan,
Thanks for your response. I guess I should clarify a little more.
The problem is occuring when I first try open the ftp connection. I
type ftp '###.###.###.###' and it immediately times out. Once I am
connected it responds fine. I need it to wait longer before timing
out on making the initial connection. It appears that the debug T1|T2
[value] options is more useful once you have already connected.
Thanks,
Justin
In that case maybe you can ftp to the localhost then use debug then
open target
user user
pass password
& hopefully it wil then be OK ?
--
Jonathan Bailey.
justin
2004-06-08 14:33:18 UTC
Permalink
Post by
Post by justin
<snip>
Post by
DEBug T1 | T2 ^ value ]
Jonathan,
Thanks for your response. I guess I should clarify a little more.
The problem is occuring when I first try open the ftp connection. I
type ftp '###.###.###.###' and it immediately times out. Once I am
connected it responds fine. I need it to wait longer before timing
out on making the initial connection. It appears that the debug T1|T2
[value] options is more useful once you have already connected.
Thanks,
Justin
In that case maybe you can ftp to the localhost then use debug then
open target
user user
pass password
& hopefully it wil then be OK ?
I tried that and it didn't seem to change anything. The open command
would still fail immediately. I am kind of at a loss for a solution.

BTW, sorry for the slow response. For some reason my ISP is not
picking up several of my favorite newsgroups so I am having to go
through google which is kind of delayed.

Thanks,
Justin
2004-06-08 15:48:45 UTC
Permalink
Post by justin
Post by
Post by justin
<snip>
Post by
DEBug T1 | T2 ^ value ]
Jonathan,
Thanks for your response. I guess I should clarify a little more.
The problem is occuring when I first try open the ftp connection. I
type ftp '###.###.###.###' and it immediately times out. Once I am
connected it responds fine. I need it to wait longer before timing
out on making the initial connection. It appears that the debug T1|T2
[value] options is more useful once you have already connected.
Thanks,
Justin
In that case maybe you can ftp to the localhost then use debug then
open target
user user
pass password
& hopefully it wil then be OK ?
I tried that and it didn't seem to change anything. The open command
would still fail immediately. I am kind of at a loss for a solution.
BTW, sorry for the slow response. For some reason my ISP is not
picking up several of my favorite newsgroups so I am having to go
through google which is kind of delayed.
Thanks,
Justin
In that case I dont know. We use a router for FTP to one site & do a ping to
wake it up. Does a ping with a reasonable packet count & wait time just
before the FTP do anything useful ?
--
Jonathan Bailey.
justin
2004-06-09 14:17:24 UTC
Permalink
<snip>
Post by
Post by justin
Post by
In that case maybe you can ftp to the localhost then use debug then
open target
user user
pass password
& hopefully it wil then be OK ?
I tried that and it didn't seem to change anything. The open command
would still fail immediately. I am kind of at a loss for a solution.
BTW, sorry for the slow response. For some reason my ISP is not
picking up several of my favorite newsgroups so I am having to go
through google which is kind of delayed.
Thanks,
Justin
In that case I dont know. We use a router for FTP to one site & do a ping to
wake it up. Does a ping with a reasonable packet count & wait time just
before the FTP do anything useful ?
Yeah, unfortunately, I thought of that as well. I think that the
problem lies in the fact that the response time on any network request
is at best around 700ms, due to this being a satellite connection. At
times, it will exceed 1 second for ping responses. I guess that the
max connection timeout is right around 1 second, so anytime it takes
longer than a second for the response to get to me, it times out. I
was hoping for some kind of CL parameter to make the FTP cmd wait
longer.

Thanks for your help.

Justin

Jack Kingsley
2004-06-07 13:01:08 UTC
Permalink
Post by justin
Is there a way to make the ftp client wait for a connection longer
before timing out? We are running v5r1 and are connecting to a number
of remote sites over a satellite link. Due to the latency issues with
satellite it takes several seconds for the remote site to respond but
the ftp client on the AS400 pops back almost immediately with a
"No response received from FTP server.
No response from remote host; all connections closed."
Eventually I am able to connect, so I know my routing is correct.
Ping responds adequately. On my windows and linux systems the ftp
client will wait for a response for the remote site, it usually takes
about 5 seconds but it connects every time. I just need the AS400 to
wait a little longer for the host to respond before it times out.
Any help is greatly appreciated.
Might try CHGFTPA, look at your inactivity timer.
Post by justin
Justin
justin
2004-06-08 14:38:07 UTC
Permalink
Post by Jack Kingsley
Post by justin
Is there a way to make the ftp client wait for a connection longer
before timing out? We are running v5r1 and are connecting to a number
of remote sites over a satellite link. Due to the latency issues with
satellite it takes several seconds for the remote site to respond but
the ftp client on the AS400 pops back almost immediately with a
"No response received from FTP server.
No response from remote host; all connections closed."
Eventually I am able to connect, so I know my routing is correct.
Ping responds adequately. On my windows and linux systems the ftp
client will wait for a response for the remote site, it usually takes
about 5 seconds but it connects every time. I just need the AS400 to
wait a little longer for the host to respond before it times out.
Any help is greatly appreciated.
Might try CHGFTPA, look at your inactivity timer.
Post by justin
Justin
I was under the impression that CHGFTPA only changed the settings for
the ftp server not the client. I am using the client on the AS/400 to
go to a SCO OpenServer Unix box (actually a bunch of them). The unix
box is responding as fast as it can but due to our satellite
connection, there is about a 3/4 of a send to a 1.5 second delay on
the requests. It seems that the client software times out after 1
second.

Does anyone know anything about the propagation delay setting on the
line description for the ethernet line?

Thanks,
Justin
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