Western Digital Purple PR1000M Technical Reference Manual page 60

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LOSSARY PR1000M
World Wide Name (WWN) — The World Wide Name (WWN) defined in ATA/ATAPI-7 is a
modification of the IEEE extended unique identifier 64 bit standard (EUI-64) and is comprised
of three major components: naming authority, organizationally unique identifier (OUI) and
serial number. WD's OUI is 0014EEh.
Write Cache — A feature in CacheFlow that posts "command complete" prior to completing
the actual write.
RELEASED 5/8/17 (WD CONFIDENTIAL) 2679-800020-A03
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