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Do LUN serial numbers need to be unique in ONTAP?

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Applies to

All versions of Clustered ONTAP

Answer

  • The LUN modify command in ONTAP will let users manually set a serial number. 
  • These numbers are not required to be unique across ONTAP as long as the LUNs are not mapped. However, they are required to be unique when mapped. 
  • Mapping two LUNs with the same serial number may cause inconsistency in data service.

 

 

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