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50 Dell EMC SC Series: Red Hat Enterprise Linux Best Practices | CML1031
These WWID values in turn, correlate to the Serial Number or the Device ID value of the SC Series storage
devices.
SC Series Volume Serial Number and Device ID fields
5.4 Decoding the WWID
The WWID returned by lsscsi, scsi_id, and multipath commands is a string of 33 characters. The string can be
broken down into different parts that identify the vendor, make, serial number and device. The following
example shows a breakdown of a SC volume WWID and their translation.
3 6 000d31 000fcaf 0000000000 000002d9
Network Address Authority (NAA) format identifier
3 6 000d31 000fcaf 0000000000 000002d9
IEEE Organizationally Unique Identifier (OUI) for Compellent
3 6 000d31 000fcaf 0000000000 000002d9
SC Series array serial number in hex
3 6 000d31 000fcaf 0000000000 000002d9
SC Series volume serial number
The list of IEEE OUI is located at http://standards-oui.ieee.org/oui.txt.
Convert SC Series array serial number from hex to decimal:
# echo $(( 16#000fcaf ))
64687