[HPADM] FTP to or from MVS mainframe problem

From: Naylor, Jim (Jnaylor_at_Schnucks.com)
Date: 12/06/04

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    To: "Hpux-Admin@Dutchworks. Nl (E-mail)" <hpux-admin@dutchworks.nl>
Date: Mon, 6 Dec 2004 08:40:51 -0600

    Hello All,
    We are experiencing a problem doing FTP to or from a mainframe S390 running
    MVS where as it is extremely slow. It only seems to be a problem on our
    HP9000 systems (N4000, RP7400, K370) running HP-UX 11.0. We were getting
    around 35 meg/s throughput. We tried FTPing the same file from an IBM
    RS/6000 running AIX 4.3.3 and were getting over 500 meg/s. On the HP9000
    and the switch we set the speed of the NIC card from 100 Meg Full Duplex to
    10 Meg Half duplex and the speed of the transfer went up to 150+ meg/s. I
    looked at the ndd command and tried changing a couple of the buffer settings
    but it did not help. I am not quite sure why AIX systems transfers the file
    at a normal rate but the HP system does not. I was wondering if anyone else
    had experienced this and if so was there a way to fix it?

    Thanks,
    Jim Naylor
    Unix Systems Administrator
    Schnuck Markets, Inc

    *Direct: (314) 994-4784
    *))Cell: (314) 691-0186
    *Fax: (314) 994-4684
    * jnaylor@schnucks.com

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