Description and scope of the service: Difference between revisions
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||Class 2||<10 minutes||disk cache in front of tape||1||na||disk buffer cache in front of tape large enough to hold a working set of the data to guarantee access times |
||Class 2||<10 minutes||disk cache in front of tape||1||na||disk buffer cache in front of tape large enough to hold a working set of the data to guarantee access times |
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|align="center"|Class 3||<10 hours||tape only||2||2 locations||regular archive storage comparable to azure, aws |
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||Class 4||<10 hours||tape only||2||2 locations||super safe storage. targeting 20 nines. Second location with different technology |
||Class 4||<10 hours||tape only||2||2 locations||super safe storage. targeting 20 nines. Second location with different technology |
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Revision as of 19:21, 30 May 2016
The service for long time storage 'BWDA' offers the following storage classes:
| Name | Max avg. access time | Storage Location | # of copies | physical separation | comment |
|---|---|---|---|---|---|
| Class 1 | <10 seconds | disk only | 1 | na | high available RAID6/E2EDI |
| Class 2 | <10 minutes | disk cache in front of tape | 1 | na | disk buffer cache in front of tape large enough to hold a working set of the data to guarantee access times |
| Class 3 | <10 hours | tape only | 2 | 2 locations | regular archive storage comparable to azure, aws |
| Class 4 | <10 hours | tape only | 2 | 2 locations | super safe storage. targeting 20 nines. Second location with different technology |
COS definitions
- 1 default (no resources)
- 0123 GridKa, 1 copy, size < ? GB
- 1102 GHI
- 1103 GHI
- 1104 GHI Metadata
- 1205 Medium, 2 Copies, Size < 500 GB (Physical < 640 GB)
- 1204 Large, 2 Copies, Size < 2000 GB (Physical < 8000 GB)
- 1206 BioQuant, 2 copies, size < 10 GB (physical < 12 GB)
- 1302 Unknown
- 1303
