Reliability analysis of simplex and duplex memory systems with SEC and soft-error scrubbing recovery
Reliability of RAM memory systems is impaired by environmental disturbances, causing soft errors, whereby one data bit is transformed to another bit. Single-error correcting codes with memory scrubbing offer the most effective method to recover from such errors. This paper analyzes the reliability a...
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| Veröffentlicht in: | The International journal of quality & reliability management 2003-07, Vol.20 (5), p.620-636 |
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| container_title | The International journal of quality & reliability management |
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| creator | Kontoleon, John M Andrianakis, John |
| description | Reliability of RAM memory systems is impaired by environmental disturbances, causing soft errors, whereby one data bit is transformed to another bit. Single-error correcting codes with memory scrubbing offer the most effective method to recover from such errors. This paper analyzes the reliability and determines the MTTF for simplex and duplex memory systems with single-error correction and or soft-error scrubbing recovery. It extends previous work on the deterministic scrubbing recovery of simplex memory systems by using a more general model that takes into account cancelling soft errors. In the duplex memory system an additional level of static redundancy is proposed by employing a decoding algorithm at the memory module level. The reliability analysis of the duplex system with soft-error scrubbing takes into account the decoder output which upon scrubbing transforms words with a number of multiple errors to words with a different number of errors. Computer results show that this combination of data and system redundancy provides more reliability than either data or system redundancy alone. |
| doi_str_mv | 10.1108/02656710310476561 |
| format | Article |
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Single-error correcting codes with memory scrubbing offer the most effective method to recover from such errors. This paper analyzes the reliability and determines the MTTF for simplex and duplex memory systems with single-error correction and or soft-error scrubbing recovery. It extends previous work on the deterministic scrubbing recovery of simplex memory systems by using a more general model that takes into account cancelling soft errors. In the duplex memory system an additional level of static redundancy is proposed by employing a decoding algorithm at the memory module level. The reliability analysis of the duplex system with soft-error scrubbing takes into account the decoder output which upon scrubbing transforms words with a number of multiple errors to words with a different number of errors. Computer results show that this combination of data and system redundancy provides more reliability than either data or system redundancy alone.</description><subject>Computers</subject><subject>Decoding</subject><subject>Error correction & detection</subject><subject>Fault tolerance</subject><subject>Hierarchies</subject><subject>Mathematical models</subject><subject>Quality control</subject><subject>Random access memory</subject><subject>Reliability</subject><subject>Studies</subject><subject>Systems analysis</subject><issn>0265-671X</issn><issn>1758-6682</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNqN0U1LxDAQBuAgCq6rP8Bb8KAerE6aNkmPsvgFguAHeCtpO9FIu1mTVu2_N7qeVMRThszzzmGGkG0Gh4yBOoJU5EIy4AwyGUu2QiZM5ioRQqWrZPLRTyK4XycbITwBQMpYOiHNNbZWV7a1_Uj1XLdjsIE6Q4PtFi2-xb-GNsNn2WHn_EjDGHrsAn21_SO9OZl9kuBMn6D3ztNQ-6Gq7PyBeqzdC_pxk6wZ3Qbc-nqn5O705HZ2nlxenV3Mji-TmgvWJwVvhKy4qkAJMDKFQta6MGgU1gBYCwWm4TzjBiuJmmsh0gywyHNMZWMkn5K95dyFd88Dhr7sbKixbfUc3RBKmfGMCSlZlLt_yrTIpeKgItz_E7IcBJecqzzSnW_0yQ0-rjSqQgrgMtIpYUtUexeCR1MuvO20H0sG5cclyx-XjBlYZrBDr9vmX5GD3yM_aLloDH8HwHisFA</recordid><startdate>20030701</startdate><enddate>20030701</enddate><creator>Kontoleon, John M</creator><creator>Andrianakis, John</creator><general>MCB UP Ltd</general><general>Emerald Group Publishing Limited</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TA</scope><scope>7WY</scope><scope>7WZ</scope><scope>7XB</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>F~G</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>K6~</scope><scope>K8~</scope><scope>L.-</scope><scope>L6V</scope><scope>M0C</scope><scope>M0T</scope><scope>M2T</scope><scope>M7S</scope><scope>PQBIZ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>7TB</scope><scope>FR3</scope></search><sort><creationdate>20030701</creationdate><title>Reliability analysis of simplex and duplex memory systems with SEC and soft-error scrubbing recovery</title><author>Kontoleon, John M ; 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| identifier | ISSN: 0265-671X |
| ispartof | The International journal of quality & reliability management, 2003-07, Vol.20 (5), p.620-636 |
| issn | 0265-671X 1758-6682 |
| language | eng |
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| source | Emerald Journals |
| subjects | Computers Decoding Error correction & detection Fault tolerance Hierarchies Mathematical models Quality control Random access memory Reliability Studies Systems analysis |
| title | Reliability analysis of simplex and duplex memory systems with SEC and soft-error scrubbing recovery |
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