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Part II. Phased Implementation Plan for DMAC4. Infrastructure/Communications4.1. Infrastructure4.1.1. The DMAC shall leverage existing or deploy dedicated IOOS data servers at TBD locations,including up to all of the following: Regional Data Centers, Data Assembly Centers,Modeling Centers, and Archive Centers.4.1.2. The DMAC shall leverage existing or provide aggregate storage as follows:4.1.2.1. Regional Data Centers4.1.2.1.1. Online - TBD4.1.2.1.2. Near-line (e.g., online tape silo) - TBD4.1.2.1.3. Offline - TBD4.1.2.2. Data Assembly Centers4.1.2.2.1. Online - TBD4.1.2.2.2. Near-line (e.g., online tape silo) - TBD4.1.2.2.3. Offline - TBD4.1.2.3. Modeling Centers4.1.2.3.1. Online - TBD4.1.2.3.2. Near-line (e.g., online tape silo) - TBD4.1.2.3.3. Offline - TBD4.1.2.4. Archive Centers4.1.2.4.1. Online - TBD4.1.2.4.2. Near-line (e.g., online tape silo) - TBD4.1.2.4.3. Offline - TBD4.2. Communications4.2.1. The DMAC shall leverage existing communications capabilities or provide dedicatedbroadband networks between/among the Regional Data Centers, Data Assembly Centers,Modeling Centers, and Archive Centers.4.2.2. Data Providers for the IOOS will use existing Internet capacity to push data holdings tothe Regional and National Backbone Data Centers.5. Technology Infusion5.1. The DMAC shall develop a plan to address technology infusion. The plan shall include mechanismsfor member-provided technology infusion, as well as that which is centrally funded andmaintained. The emphasis will be on integration, compatibility, and interoperability among allparties participating in the IOOS.5.2. The plan shall include evolving mass storage technology.5.2.1. The plan shall include strategies for storage media migration.56