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  • 1.  SLES 10 NFS server AIX client slowness

    Posted Tue November 04, 2008 12:45 PM

    Originally posted by: SystemAdmin


    This is working just fine for the most part, we can read and write to our mount point. The problem we are having is we have an open file that is being written to and copied at the same time to our NFS mount. The file size is about 500Mb, when we start this process the file is copied to the mount point and another location locally on the AIX system. While it is being copied it is also being appended as new data comes in.

    The same file is being written locally on the AIX box and the file will recover its full size in about 90 seconds yet the same file to the NFS mount will take 90 minutes. If we do just the copy command it will copy the same file to the mount point in about 90 seconds.

    Since this data is streaming we can not just copy the file then append it after the fact. When we start this process, it will collect the information and compile it into a file and write it to the specified location all the while streaming updates into the same file.


  • 2.  Re: SLES 10 NFS server AIX client slowness

    Posted Wed November 05, 2008 08:03 AM

    Originally posted by: tony.evans


    When you looked at the network and nfs performance information, did that reveal any issues?

    netstat
    nfsstat
    etc.


  • 3.  Re: SLES 10 NFS server AIX client slowness

    Posted Wed November 05, 2008 02:05 PM

    Originally posted by: SystemAdmin


    We noticed that it would send 20Mb pause then send another 20Mb and pause repeating until the file is caught up. Not sure if it is buffering or ?