Analysis of test questions: the particularity of contradiction means that contradictory things and each side have their own characteristics. The storage methods of "immediate access to hot data", "frequent use of temperature data" and "long-term archiving of cold data" in materials are different, which reflects the particularity of contradictions, so the answer D is correct; The material does not reflect the relationship between universality and particularity of contradiction, and A does not conform to the meaning of the question; B indicates that the contradiction is universal and does not conform to the meaning of the question; The material does not reflect the transformation of primary and secondary contradictions, and C does not meet the meaning of the question.