hidden:Description and scope of the service
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| Name | Max avg. access time | Storage technology | # of copies | Price TB/p.a. | Comment |
|---|---|---|---|---|---|
| Class 0 | less than10 seconds | disk only | 1 | 325 Euro | high available RAID6/E2EDI |
| Class 1 - Standard | less than 10 hours | tape only | 2 | 120 Euro | regular archive storage comparable to Microsoft Azure and Amazon AWS |
| Class 2 - Premium | less than 10 minutes | disk cache in front of tape | 2 | 150 Euro | disk buffer cache in front of tape large enough to hold a working set of the data to guarantee access times |
| Class 3 - Premium Plus | less than 10 hours | tape only | 3 | 150 Euro | super safe storage. targeting 20 nines. Third location outside computer centre. |
