Author : Jignesh Patel 1
Date of Publication :14th February 2018
Abstract: At 40000 feet in the air, there is continuous bombarding of alpha radiation from sun on flight hardware .Since the integrity of data in storage systems is critical , there needs to be a way to make sure that data stored on Flash memory is correct each time the data is accessed. Although there are error correction codes to handle that , they do at most times handle only on bit correction .
Reference :
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- At varying levels of radiation intensity , we were able to prove that there is single and multiple bit flips in flash memory.
- The original proposed solution was to shield the hardware with lead . But this would involve redesign costs .
- Since our solution was software based, we eliminated shipping costs. Also , the monitoring mechanism easily fits into current architecture .
- This particular hardware costs $2,50,000 . By implementing this , we would increase MTBF (mean time between failure) by 23% thereby increasing the in-service period substantially.