topic LUN WWN of LUNs exposed from external array to NetApp in ONTAP Discussions https://community.netapp.com/t5/ONTAP-Discussions/LUN-WWN-of-LUNs-exposed-from-external-array-to-NetApp/m-p/71241#M16594 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I have couple of external arrays connected to NetApp V-series, the serial number of all disks that derive storage from external array appear as a hexdecimal string of length 32.</P><P></P><P>Ex: 123456789ABCDEFGHIJKLMNOPQRSTUVW</P><P></P><P>But for some disks this serial number is reported as string of length 12, not is HEX format but in a different format looks like ASCII as I see '$' and other special characters appear in disk serial.</P><P></P><P>Ex: 123456$AB000</P><P></P><P>Why is this difference in disk serial numbers?. Is there a uniform format for disk serials that derive storage from external array?.</P><P></P><P>Please let me know your thoughts/opinions/suggestions.</P><P></P><P>Thanks,</P><P>Mohan</P></BODY></HTML> Thu, 05 Jun 2025 05:30:24 GMT MOHAN1985 2025-06-05T05:30:24Z LUN WWN of LUNs exposed from external array to NetApp https://community.netapp.com/t5/ONTAP-Discussions/LUN-WWN-of-LUNs-exposed-from-external-array-to-NetApp/m-p/71241#M16594 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I have couple of external arrays connected to NetApp V-series, the serial number of all disks that derive storage from external array appear as a hexdecimal string of length 32.</P><P></P><P>Ex: 123456789ABCDEFGHIJKLMNOPQRSTUVW</P><P></P><P>But for some disks this serial number is reported as string of length 12, not is HEX format but in a different format looks like ASCII as I see '$' and other special characters appear in disk serial.</P><P></P><P>Ex: 123456$AB000</P><P></P><P>Why is this difference in disk serial numbers?. Is there a uniform format for disk serials that derive storage from external array?.</P><P></P><P>Please let me know your thoughts/opinions/suggestions.</P><P></P><P>Thanks,</P><P>Mohan</P></BODY></HTML> Thu, 05 Jun 2025 05:30:24 GMT https://community.netapp.com/t5/ONTAP-Discussions/LUN-WWN-of-LUNs-exposed-from-external-array-to-NetApp/m-p/71241#M16594 MOHAN1985 2025-06-05T05:30:24Z