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Cost Comparison: How Many Gigabytes For Your Money?

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12:01 PM - 02/25/2003 by Jürgen Heyer

The cheapest tape drive is not automatically the best-value archiving concept. The table gives an overview for 1 GB of data storage.

Up To 50 GB Capacity
Manufacturer Dell Powervault Onstream Seagate Tandberg Tandberg
Product 110T DLT VS 80 ADR2 60Si tapestor DAT 40 DLT VS 80 SLR100
Time to fill the media (in test lab) 254 minutes 163 minutes 142 minutes 254 minutes 176 minutes
Time for 200 GByte 20:49 hours 17:16 hours 23:27 hours 20:29 hours 11:33 hours
Measured transfer rate in test lab *) 88% 77% 86% 88% 95%
Tape price per gigabyte $2.09 $2.16 $0.95 $2.48 $2.07
More than 50 GB Capacity
Manufacturer ExaByte HP Onstream Seagate Tandberg
Product VXA-2 SDLT 320 ADR2 120Si Viper 200 SDLT 320
Time to fill the media (in test lab) 258 minutes 203 minutes 329 minutes 154 minutes 203 minutes
Time for 200 GByte 10:07 hours 4:09 hours 17:27 hours 4:51 hours 4:09 hours
Measured transfer rate in test lab *) 86% 82% 76% 68% 82%
Tape price per gigabyte $1.11 $0.94 $1.58 $0.89 $1.34
*) Manufacturer's specification is 100 percent.

Evaluation

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