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Economical Big Local Storage Tom Klingler, Kent State University

Economical Big Local Storage Tom Klingler, Kent State University. CNI Spring 2013 Membership Meeting April 4-5, 2013 San Antonio, TX. Kent State University. 2. Economical Big Local Storage. Storage Pods (present): Storage Pod: $5,000.00 each x 3 pods = …$15,000.00

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Economical Big Local Storage Tom Klingler, Kent State University

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  1. Economical Big Local StorageTom Klingler, Kent State University • CNI Spring 2013 Membership Meeting • April 4-5, 2013 • San Antonio, TX

  2. Kent State University 2

  3. Economical Big Local Storage Storage Pods (present): Storage Pod: $5,000.00 each x 3 pods = …$15,000.00 Minimum Storage of 36 TB (starting with 15 3-TB drives PER POD): $130.00 each x 15 drives x 3 pods =..$5,850.00 Present total cost: ………...………...……….$20,850.00 Present cost per (triple-redundant) gigabyte: $20,850.00 / 36,000 gigabytes=……..….$0.58 with triple redundancy. (Actual gigabytes online: 108,000 ) 3

  4. Economical Big Local Storage Storage Pods (full): If we max out the storage pods, we can triple the storage space without needing to buy additional pods: Storage Pod: $5,000.00 each x 3 pods = ……….$15,000.00 Maximum Storage of 108 TB: $130.00 each x 45 drives x 3 pods =………..….. $17,550.00 Cost per (triple-redundant) gigabyte: ($15,000.00 + $17,550.00) / 108,000 = ………....……$0.30 with triple redundancy.   (Actual gigabytes online: 324,000 ) 4

  5. Economical Big Local Storage Storage Pod Solution 1. medium-term storage of digital objects IS not DAM IS dark archive IS Staff storage tool 5

  6. Economical Big Local Storage • Storage Pod Solution • 2. objects are known as “items” • items can be: digital assets, images, movies, documents, • limited to basic 41 file types • b. batch upload, zip upload, drag/drop upload • c. items --> expiration date --> based on retention period • --> based on retention group • d. expiration date warning email and expiration report • e. items can be labeled as “significant” and then • reviewed for potential long-term storage 6

  7. Economical Big Local Storage Storage Pod Solution 3. Organization: Workgroup ---Project --Item --Item metadata   7

  8. Economical Big Local Storage • Storage Pod Solution • 4. Metadata • a. metadata assigned by the system, such as file type and file size • b. users may provide other metadata about the item, such as title, description, creator, creation date, and retention group • c. metadata for items in a project can be set automatically by • uploading a ZIP Archive file • d. certain metadata, such as creator, can be assigned to every item • in a project at one time by editing the project information • system will also harvest IPTC data from image files if it is present, • including title, creator, creation date, and location 8

  9. Economical Big Local Storage • Storage Pod Solution • 5.  Users • can be members of any number of workgroups, • and create any number of projects, • c. which can contain any number of items. 9

  10. Economical Big Local Storage • Storage Pod Solution • 6. Hardware / Software • a. 3 servers distributed throughout campus • 36TB storage each, 15 drives each server • (case holds 45 drives) • c. CentOS (Linux) OS on separate system boot drive • d. RAID6  (allows loss of 2 drives with no data loss) • e. single CPU • f. no 24/365 uptime expectation • g. biggest concern is data preservation 10

  11. Economical Big Local Storage • Storage Pod Solution • 6. Hardware / Software • Interface for staff only; no public interface • i. master storage of files • No need to store derivative files.  • They can be regenerated. • daily sync between three pods if all checksums are valid  • fixity check (bitwise preservation) • checksum computed on server at file upload • checksum file integrity check each file each night • admin notification of checksum problem 11

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