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  • 1.  FTP Issue Between DC to DR

    Posted Sat March 31, 2012 01:10 AM

    Originally posted by: laxmip


    Hi Guys,

    I am Prasad from IBM.

    I am trying to FTP from DC AIX servers to DR AIX servers and as well as DR to DC.
    1. FTP between some servers taking 30 Secs for 100 MB file
    2. Some servers taking 90 Secs
    3. Some servers taking 150 Secs.

    I could not understand where actually the problem is...
    I did
    A) Modified network speed from Auto to 1000 Full duplex from AIX end and Switch end for all DC/DR servers
    B)Tuned some parameters like ipsrcrouterecv = 1 nonlocsrcroute = 1 routerevalidate = 0 use_isno = 0
    C) Some servers configured etherchannel and some servers LHEA, PCI. There is no virtual ethernet so i can't change MTU size to 65280.

    Please can any one help what else i can do for rectifying this,,, Thanks
    #AIX-Forum


  • 2.  Re: FTP Issue Between DC to DR

    Posted Sat March 31, 2012 01:12 AM

    Originally posted by: laxmip


    I need the FTP speed between DC to DR only 30 Secs.
    #AIX-Forum


  • 3.  Re: FTP Issue Between DC to DR

    Posted Sat March 31, 2012 09:04 AM

    Originally posted by: brian_s


    Is this a long distance, high latency network? If so, you need to look at tuning the TCP window. This can make a huge difference on high speed, high latency networks. Look at network tuning options rfc1323, sb_max, tcp_sendspace, tcp_recvspace, udp_sendspace, and udp_recvspace.
    #AIX-Forum


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