A/V Storage and Cost Estimates at MLibrary
The content discusses A/V digitization and storage estimates at MLibrary, focusing on the costs involved and projections for the coming years. Various aspects of storage, initial costs, reactions, and current estimates are analyzed in detail.
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Hard Drives by Michael Muni CC-BY-NC-ND Storage is Cheap and Other Lies: Moving Image Digitization at MLibrary Lance Stuchell, University of Michigan Library Mid-Michigan Digital Practitioners Meeting. August 2, 2013
A/V Digitization at MLibrary Digitization of Special Collections material Audio: Uncompressed BWF master files 1 original audio object 5 GB storage Moving Image: Uncompressed preservation master Compressed production master 1 original video object 40.4 GB Storage
A/V Storage Estimates TB/Year 200 180 160 140 120 100 80 60 40 20 0 2013 2018 2023
A/V Storage Estimates TB/Year 450 400 350 300 250 Backup Primary 200 150 100 50 0 2013 2018 2023
Initial Costs Estimates Value Storage: $250/TB per year
Initial Costs Estimates Value Storage: Tape Backups: $250/TB per year $1,825/TB per year
Initial Costs Estimates Value Storage: Tape Backups: $250/TB per year $1,825/TB per year 2013: $32,450 2018: $245,325 2023: $485,200
Current Costs Estimates Value Storage: $250/TB per year Equipment costs - Cheaper most years Tape Backups (MLib):
Current Cost Estimates 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000 $160,000
Current Cost Estimates 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000 $160,000
Current Cost Estimates 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000 $160,000
Total 11 Year Storage Cost $569,368
Current Cost Estimates 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000 $160,000
Current Cost Estimates 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000 $160,000
The New Normal Optimistically, for the rest of this decade the rapid decrease in cost per bit of storage that has been a constant of the last three decades will be much slower; it might even stop. David S. H. Rosenthal, et al., The Economics of Long-Term Digital Storage 2012. http://www.lockss.org/locksswp/wp-content/uploads/2012/09/unesco2012.pdf
Looking Ahead Assuming steady pricing Instability in per-bit storage ITS storage costs may not fall at same rate Long-term costs of cloud are not known Amazon costs have not decreased at HD rate1 Glacier charges for storage AND transfer Tape storage for preservation copies? Economies of scale Consortial solutions? 1 Rebecca Pool, Is cloud storage the answer to preservation? Research Information, 2/14/2013
Ramifications Preservation Some moving image material is not retained in uncompressed formats Appraisal and re-appraisal What are we keeping and for how long? How fast are we digitizing it? Costs of starting up
Storage Takeaways HD costs are no longer predictable Budgets often focused on digitization costs Ignoring significant and ongoing storage costs Storage costs are community wide problem Question of scale Best practice may not be possible Backups can cost more than primary storage Long-term archival storage ain t cheap!
