Tuesday, September 14, 2010

Short-Take: iSCSI+Nexenta, Performance Notes

Here are a few performance tips for running iSCSI with NexentaStor in a Windows environment:

  1. When using the Windows iSCSI Software Initiator with some workloads, disabling the Nagle Algorithm on the Windows Server is sometimes recommended;

  2. Tuning TCP window and iSCSI parameters on each side of the connection can deliver better performance;

  3. VMware part of the equation? Adjusting the way VMware handles congestion events could be useful;

  4. On NexentaStor, disable the Nagle Algorithm with a value of "1" (default, 4095, enabled)


For storage applications where latency is a paramount issue, these hints just might help...
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1 comment:

  1. Terry VercoeSeptember 24, 2010 at 6:23 PM

    Hi Collin

    Great common sense, no bullshit stuff, which is hard to find.
    Hope this message finds you and the doing family well.

    All the best

    Terry Vercoe - Auckland, NZ

    ReplyDelete

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