RE: Correlating *SAVF "records" to FTP job I/O count -- MIDRANGE-L

(Patrick, also see my earlier reply to Rob)

O.k., so I do a tracert from my PC to the remote 400 in question and get:

Tracing route to as400.xxxxxxxx.xxxx.com [xx.x.xx.xx] over a maximum of 30
hops:
    1    10 ms   <10 ms   <10 ms  xx.x.xx.x
    2    10 ms    10 ms   <10 ms  xx.x.xxx.xxx
    3   100 ms   100 ms    40 ms  xx.x.xxx.x
    4    60 ms   130 ms    50 ms  xx.x.xx.x
    5    70 ms   180 ms    70 ms  xxxxxxx.xxxx.com [xx.x.xx.xx]
Trace complete. 

I'm not sure what this is telling me.

TIA,
Dan Bale

> -----Original Message-----
> From: Patrick Townsend [SMTP:townsend@patownsend.com]
> Sent: Wednesday, May 03, 2000 1:36 PM
> To:   MIDRANGE-L@midrange.com
> Subject:      Re: Correlating *SAVF "records" to FTP job I/O count
> 
> 
> You can use the WRKCFGSTS and DSPLIND commands to look at the
> configurations. When TCP/IP is active on the AS/400 you will find a
> controller with a name like "ETHNET" and a device with a name like
> "ETHTCP" under the line description. 
> 
> How are the AS/400s networked? Ethernet, token ring, frame relay, ? If
> your PC is on the same network as the AS/400 you can use TRACERT to view
> a bit of information about the network topology. Start a DOS command
> window and use tracert with the remote AS/400 IP address:
> 
>     tracert 1.1.1.1
> 
> Tracert will show you the intermediate nodes in the network and provide
> you with some response times. Be aware that some routers may inhibit
> responses to Tracert so it cannot be assumed to be absolutely reliable
> in what it reports.
> 
> Of course, if the AS/400 was a "real" computer it would have trace
> route... <ducking>...
> 
> Patrick
> 
> Patrick
> 
> "Bale, Dan" wrote:
> > 
> > Wow, what a difference!  I am unaware of the comm hardware involved
> here.  I
> > can tell you that they have a network of 30+ AS/400s.  FWIW, any of
> these
> > AS/400s can FTP to any other AS/400 in the network (I don't know if that
> > gives a clue as to the setup they're using).
> > 
> > How can I tell what comm config is being used for FTP?
> > 
> > TIA,
> > Dan Bale
> > 
> > > -----Original Message-----
> > > From: Patrick Townsend [SMTP:townsend@patownsend.com]
> > > Sent: Wednesday, May 03, 2000 2:10 AM
> > > To:   MIDRANGE-L@midrange.com
> > > Subject:      Re: Correlating *SAVF "records" to FTP job I/O count
> > >
> > > Dan,
> > >
> > > I just transferred a large save file from the AS/400 to PC:
> > >
> > >     81792480 bytes transferred in 328.231 seconds. Transfer rate
> 249.191
> > > KB/sec.
> > >
> > > I then transferred the same save file to another AS/400 on the same
> > > network (10, not 100):
> > >
> > >     81792480 bytes transferred in 127.947 seconds. Transfer rate
> 639.267
> > > KB/sec.
> > >
> > > I think you should be seeing better throughput! Have you talked to the
> > > network folks to see what they have to say?
> > >
> > > Patrick
> > >
> > >
> > > "Bale, Dan" wrote:
> > > >
> > > > That bugger took 3 hours and 40 minutes to transmit.  It was 59.7MB.
> > > From
> > > > the log file:
> > > >
> > > >     61202064 bytes transferred in 12555.306 seconds. Transfer rate
> 4.875
> > > > KB/sec.
> > > >
> > > > The save file had 115,913 records.  115,913 * 528 = 61,202,064.  The
> > > DSPOBJD
> > > > size was 59,785,216 (????).
> > > >
> > > > Using 1480 bytes per frame, would you calculate the number of puts
> as:
> > > >    1)  61,202,064 / 1480 = 41,352.7         *or*
> > > >    2)  1480 / 528 = 2 whole records per frame; 115,913 / 2 = 57,957
> > > > Based on the "guesstimate" that the number of puts was around 17,000
> > > about
> > > > two hours into the job, I'm not sure either of these calculations
> work.
> > > >
> > > > I think I'm going to set up a test whereby I submit a batch job to
> do an
> > > FTP
> > > > and another batch job to do a DSPJOB OPTION(*OPNF) in a loop that
> runs
> > > every
> > > > 15 seconds and run some stats on the collected data to see if
> there's a
> > > > pattern I can use.
> > > >
> > > > Other suggestions are greatly appreciated!
> > > >
> > > > - Dan Bale
> > > >
> > > > > -----Original Message-----
> > > > > From: Patrick Townsend [SMTP:townsend@patownsend.com]
> > > > > Sent: Monday, May 01, 2000 8:24 PM
> > > > > To:   MIDRANGE-L@midrange.com
> > > > > Subject:      Re: Correlating *SAVF "records" to FTP job I/O count
> > > > >
> > > > >
> > > > > Yes, 1496 bytes. Subtracting TCP/IP frame headers you are probably
> > > > > transferring 1480 bytes per frame. How long does it take to
> transfer a
> > > > > 58 meg save file? Just takes a few minutes here between AS/400 and
> > > > > Windows NT PC.
> > > > >
> > > > > Patrick
> > > > >
> > > > > "Bale, Dan" wrote:
> > > > > >
> > > > > > What if I see that the Maximum Frame Size of the line
> description is
> > > > > 1496?
> > > > > > What does 1496 mean?  1496 bytes?  I don't have the authority to
> run
> > > a
> > > > > comm
> > > > > > trace here.  Not sure anyone else here would want to go through
> the
> > > > > bother.
> > > > > >
> > > > > > TIA,
> > > > > > - Dan Bale
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Patrick Townsend [SMTP:townsend@patownsend.com]
> > > > > > > Sent: Monday, May 01, 2000 3:15 PM
> > > > > > > To:   MIDRANGE-L@midrange.com
> > > > > > > Subject:      Re: Correlating *SAVF "records" to FTP job I/O
> count
> > > > > > >
> > > > > > > Dan,
> > > > > > >
> > > > > > > I believe the transfer record size of an FTP transfer will be
> > > > > controlled
> > > > > > > by the Maximum Frame Size of the line description. Save file
> > > record
> > > > > > > lengths are 528, but I believe FTP should send multiple
> records
> > > with
> > > > > > > each transfer. You can see what the AS/400 is doing by putting
> a
> > > > > > > communications trace on the line (STRCMNTRC). End the trace
> with
> > > > > > > ENDCMNTRC and then print it with PRTCMNTRC. There is a header
> for
> > > each
> > > > > > > TCP/IP frame, but you will get an idea of the size this way.
> > > > > > >
> > > > > > > Patrick
> > > > > > > --
> > > > > > > IBM AS/400 communications, FTP automation, and network
> security
> > > > > > > software and consulting services.
> > > > > > >
> > > > > > > http://www.patownsend.com
> > > > > > >
> > > > > > > "Bale, Dan" wrote:
> > > > > > > >
> > > > > > > > Is there a known, constant, record-blocking factor used when
> > > > > > > transmitting a
> > > > > > > > save file from one AS/400 to another via FTP?
> > > > > > > >
> > > > > > > > I am using FTP to transmit save files from plant boxes to
> the
> > > > > division
> > > > > > > box.
> > > > > > > > One I have running right now is 56MB.  The system operator
> is
> > > > > wondering
> > > > > > > how
> > > > > > > > much longer the FTP will run.  When I look at the job
> running
> > > FTP,
> > > > > it
> > > > > > > shows
> > > > > > > > the save file being transmitted as an open file (WRKJOB
> option
> > > 14)
> > > > > and
> > > > > > > shows
> > > > > > > > the I/O count at 12,417.  If I could correlate the save
> file's
> > > > > number of
> > > > > > > > records to the I/O count, I would be able to estimate the
> time
> > > > > remaining
> > > > > > > to
> > > > > > > > complete the transmission.
> > > > > > > >
> > > > > > > > RTFM?  Please point the way.
> > > > > > > >
> > > > > > > > - Dan Bale
> > > > >
> > > > > --
> > > > > IBM AS/400 communications, FTP automation, and network security
> > > > > software and consulting services.
> > > > >
> > > > > http://www.patownsend.com
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