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jonatan
Asked: 2014-04-22 23:21:22 +0800 CST

NetApp ONTAP 7.1: Enable async on NFS export

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Is there an async feature for NFS exports on NetApp ONTAP 7.1? If so, how can it be enabled?

The best search result I've found so far was an unanswered post on the NetApp forums: https://communities.netapp.com/thread/34375

nfs

1 Answers

  1. Best Answer

    Assuming I'm understanding what you're asking correctly:

    The short answer is "No". The longer answer is "You don't need it".

    NetApp filers cache NFS writes to NVRAM and acknowledge them to the host immediately, using that NVRAM to assemble full stripe writes and make good use of the Write Anywhere File Layout (WAFL).

    What this means though, is that you're effectively doing async already - a write is deemed 'complete' as soon as it's committed in NVRAM, and the filer will handle destaging behind the scenes. (The NVRAM is battery backed in order to avoid potential data loss in a power outage).

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