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Setting access cache timeout values

You can set several options to customize the access cache timeout behavior. This enables you to balance access cache performance with how recent the stored information is.

Steps

  1. To specify how long Data ONTAP keeps an entry in the access cache, enter the following command: options nfs.export.harvest.timeout integer
    integer specifies the idle expiration time for entries in the export access cache in seconds. The default is 3600 seconds (one hour). The minimum value is 60 seconds. The maximum value is 604800 seconds (seven days).
  2. To specify how long Data ONTAP uses an access cache entry which was denied access before refreshing it, enter the following command: options nfs.export.neg.timeout integer
    integer specifies the timeout period in seconds. The default is 1800 seconds (30 minutes). The minimum value is 60 seconds. The maximum value is 604800 seconds (seven days).
  3. To specify how long Data ONTAP uses an access cache entry which was granted access before refreshing it, enter the following command: options nfs.export.pos.timeout integer
    integer specifies the idle expiration time for entries in the export access cache in seconds. The default is 36000 seconds (ten hours). The minimum value is 60 seconds. The maximum value is 604800 seconds (seven days). For more information, see the na_options(1) man page.