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Legacy CIFS applications cannot work without SMB1 after 7MTT to Cluster Mode

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • Synchronous Mirrors
  • CIFS

Issue

  • Synchronous mirrors after 7MTT would not allow SMB 1 to be enabled:
SMB 1 is not allowed on vserver containing volumes participating in snapmirror synchronous relationships.
 
  • Windows side SMB browsing is fine, but NFS mounting CIFS volumes failing with:
Error (112)
Host is down

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