ATTACHMENT A.pdf
PDF 152 KB Posted
- Attached to
- Magnetic Tape Data Recovery Federal contract opportunity
- Solicitation number
- 80GSFC23AA004
About this file
This statement of work describes magnetic tape data recovery services required by the National Aeronautics and Space Administration Goddard Space Flight Center. The contractor shall inventory magnetic tapes containing earth science data from the early 1960s, photograph and document the tape labels, recover the data by transcribing it to binary files, and provide detailed inventories of the recovered files and tapes. The recovery process must handle various tape formats from 7-track to 8mm tapes, and address issues such as misaligned or degraded tapes. The contractor shall describe their recovery approach, data and inventory file formats, and properly dispose of tapes after data extraction with NASA approval. Separately priced removable drive(s) for delivering products are also required.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Q and A-Solicitation 80GSFC23AA004.pdf | ||
| SF1449-rev.pdf | ||
| Enclosure 4 .pdf | ||
| SF1449.pdf | ||
| Enclosure 2.pdf | ||
| Enclosure 3.pdf | ||
| Enclosure 6.pdf | ||
| Cover Letter.pdf | ||
| Enclosure 1 - Model BPA.pdf | ||
| ATTACHMENT B.pdf | ||
| Enclosure 5.pdf | ||
| Enclosure 7.pdf |
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Text version
ATTACHMENT A 80GSFC23AA004
ATTACHMENT A
STATEMENT OF WORK
MARCH 2023
Earth Science Magnetic Tape Data Recovery
March 2023
The Goddard Earth Science Data and Information Services Center (GES DISC) project within Code 619 at the Goddard Space Flight Center has been tasked with recovering unique scientific data from magnetic tapes that are well past their expected media life. The recovery of this data will extend the earth science data record for many types of measurements back through the early 1960s. In many cases these tapes are fragile and the strength of the imbedded signal significantly degraded. In addition, the early drives on which these tapes were written were manually aligned and differences in alignments between drives could also make the tapes difficult to read. The data is on a variety of tape media which includes: 7-track tapes, 9-track tapes, 3480 tapes, 8 mm tapes, and 4 mm tapes.
The expected capabilities of the recovery process include:
1. Inventory the shipment of magnetic tapes and compare to the provided inventory. Report to NASA GSFC technical representative whether the shipment is complete or note any discrepancies.
2. Take a digital photo of the physical media to capture the label information in order to become part of the media inventory. A digital photo shall be provided for each tape. The purpose of this is to capture all the external label information, much of which could be hand written. Potentially, there could be information on the back of the tape, in which case, two images may be required.
3. Recover/transcribe the data from magnetic tapes to a binary (8-bit byte) data file. The contractor shall:
- Provide a description of the process for reading the data from the tapes. Specifically, address any processes for delivery with anomalous issues, such as, misaligned tapes, sticky tapes, broken hubs, etc.
- Provide a description of the transcribed data format, specifically addressing the conversion of 7-bit and 9-bit tape formats into 8-bit byte data formats.
- Read the entire length of each media to ensure all possible data is recovered.
- Read the reel media at reduced speeds to reduce stress and friction.
- Handle media tracking issues, such as those resulting from degraded signal strength or alignment issues.
- Handle the problems of old media, including, but not limited to, sticky tapes and dry-rotted plastic hubs, including capability to bake the tapes to remove excess moisture.
4. Provide an inventory list showing the mapping between NASA tape number and recovered file, including digital picture of each media and labels.
- Provide a description of the inventory file format
- Each recovered tape should include the following:
o Tape ID from NASA Inventory o File ID (filename) for data file corresponding to tape o File photo ID(s) for digital photo(s) of tape label o .csv file ID for .csv file corresponding to data file o Description of any recovery anomalies. If recovery is unsuccessful, a description of the recovery failure
5. Provide a .csv (comma separated value) inventory file of the individual file marks recovered from each tape to clearly identify the beginning and end of individual files on the media, number of records per file, number of bytes per record, and end of tape marker.
- Provide a description of the inventory file format
- For each tape, a .csv (comma separated values) file shall be created and at a minimum include:
o Number of individual files o Location of Begin mark of file o Location End mark of file o Number of records in file o Number of bytes per record o Location of end of tape marker
6. Provide a description for the final disposal of the tapes. Upon written permission from the NASA technical representative after successful recovery, tapes shall be formally disposed. At a minimum, this shall include removal of all labels and rendering the media unreadable. Provide a notarized document certifying the date of tape disposal, description of the tape disposal process, and that tape destruction has been completed.
7. Separately price the removable drive(s) on which the products will be delivered.
Earth Science Magnetic Tape Data Recovery
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