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Does Cache get deleted if there is no access to the Cache volume for a certain period

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • Write-back mode with mtime-based scrubber

Answer

No, it doesn't.
In the context of NetApp Cache systems, the absence of access to the Cache volume does not directly trigger cache deletion. 
 
Note:
  • However, in Write-back mode, a periodic mtime-based scrubber scans files within the cache to identify dirty data (files that have been modified or newly created). 
  • Upon detecting dirty data within the cache, I/O to the respective file is temporarily halted, initiating a write-back process. 
  • Subsequently, the file is removed from the cache to maintain efficiency and data integrity.

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