Fault-tolerant solid state mass memory for satellite applications

Research on Experiment Technology for High Reliability Flash Storage Systems

“…This method, Semi-RAID, is very interesting when the storage medium is HDD. Reference [7] proposes an Error Correcting Code for a mass memory unit based on DRAMs, this paper investigates the usage of NAND flash technology as a main memory for spacecraft. Reference [10] proposes a scheme that enhances reliability of flashbased satellites storage systems; it applies RAID-5 mechanism at FTL level, the clustering architecture of this scheme allows to minimize power consumption and enhance reliability.…”

Feasibility study of the space synthetic aperture radar for the SSETI-ESMO project

“…To reduce the costs, the commercial off-the-shelf (COTS) memory components should be used. To enhance its reliability the redundancy and error detection and correction (EDAC) codes should be considered [4,24]. SAR technology generates large amounts of data and requires high speed data bus (HSDB) to transfer them between transmitter/receiver system and processing and storage system.…”

A fault tolerant hardware based file system manager for solid state mass memory

“…This board organization allows on-line reconfiguration of the memory module with different error correction code stmctures, depending on both the application considered and the data integrity requirement. [9] In fact, it is possible to choose the codeword length among n, 112 n or 1/4 n. Increasing the memory washing frequency, it is also possible to reduce the code length maintaining the overall bit error rate (BER). Of course, this solution reduces the availability.…”

“…Of course, this solution reduces the availability. Code parameters are optimized for a specific mission using the optimization tools presented in [9][10]. The U0 Memory Interfaces provide the distributed file system management capability.…”