Disk array storage system reliability
Fault tolerance requirements for near term disk array storage systems are analyzed. The excellent reliability provided by RAID Level five data organization is seen to be insufficient for these systems. The authors consider various alternatives - improved MTBF and MTTR times as well as smaller reliab...
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creator | Burkhard, W.A. Menon, J. |
description | Fault tolerance requirements for near term disk array storage systems are analyzed. The excellent reliability provided by RAID Level five data organization is seen to be insufficient for these systems. The authors consider various alternatives - improved MTBF and MTTR times as well as smaller reliability groups and increased numbers of check disks per group - to obtain the necessary improved reliability. Two data organization schemes based on maximum distance separable error correcting codes are introduced. Several figures of merit are calculated using a standard Markov failure and repair model for these organizations. Based on these results, the multiple check disk approach to improved reliability is an excellent option. |
doi_str_mv | 10.1109/FTCS.1993.627346 |
format | Conference Proceeding |
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The excellent reliability provided by RAID Level five data organization is seen to be insufficient for these systems. The authors consider various alternatives - improved MTBF and MTTR times as well as smaller reliability groups and increased numbers of check disks per group - to obtain the necessary improved reliability. Two data organization schemes based on maximum distance separable error correcting codes are introduced. Several figures of merit are calculated using a standard Markov failure and repair model for these organizations. Based on these results, the multiple check disk approach to improved reliability is an excellent option.</description><identifier>ISSN: 0731-3071</identifier><identifier>ISBN: 0818636807</identifier><identifier>ISBN: 9780818636806</identifier><identifier>EISSN: 2375-124X</identifier><identifier>DOI: 10.1109/FTCS.1993.627346</identifier><language>eng</language><publisher>IEEE</publisher><subject>Costs ; Disk drives ; Error correction codes ; Fault tolerant systems ; Maintenance ; Multidimensional systems ; Reliability ; Runtime ; Standards organizations</subject><ispartof>FTCS-23 The Twenty-Third International Symposium on Fault-Tolerant Computing, 1993, p.432-441</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/627346$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,776,780,785,786,2052,4036,4037,27902,54895</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/627346$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Burkhard, W.A.</creatorcontrib><creatorcontrib>Menon, J.</creatorcontrib><title>Disk array storage system reliability</title><title>FTCS-23 The Twenty-Third International Symposium on Fault-Tolerant Computing</title><addtitle>FTCS</addtitle><description>Fault tolerance requirements for near term disk array storage systems are analyzed. The excellent reliability provided by RAID Level five data organization is seen to be insufficient for these systems. The authors consider various alternatives - improved MTBF and MTTR times as well as smaller reliability groups and increased numbers of check disks per group - to obtain the necessary improved reliability. Two data organization schemes based on maximum distance separable error correcting codes are introduced. Several figures of merit are calculated using a standard Markov failure and repair model for these organizations. Based on these results, the multiple check disk approach to improved reliability is an excellent option.</description><subject>Costs</subject><subject>Disk drives</subject><subject>Error correction codes</subject><subject>Fault tolerant systems</subject><subject>Maintenance</subject><subject>Multidimensional systems</subject><subject>Reliability</subject><subject>Runtime</subject><subject>Standards organizations</subject><issn>0731-3071</issn><issn>2375-124X</issn><isbn>0818636807</isbn><isbn>9780818636806</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1993</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotj71LAzEcQIMf4LW6i9Mtjnf9feTyMcppVSh0sIJbSdpEoleU5Jb77xXa6fGWB0-IW4QWEexiuenfWrSWW0WapToTFbHuGiT5cS5mYNAoVgb0hahAMzYMGq_ErJQvAALoZCXuH1P5rl3ObqrL-JPdZ6jLVMZwqHMYkvNpSON0LS6jG0q4OXEu3pdPm_6lWa2fX_uHVZNQ09h0SjlCu_cYCSMYrZyV5CX4qOXO7D1zgM4yksdu92_GgInE1vhI3huei7tjN4UQtr85HVyetsc7_gMbcEAQ</recordid><startdate>1993</startdate><enddate>1993</enddate><creator>Burkhard, W.A.</creator><creator>Menon, J.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>1993</creationdate><title>Disk array storage system reliability</title><author>Burkhard, W.A. ; Menon, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i172t-566a219db1f21f0876a942b40bf74c8db33e059312b15cb338808f2398bf2bb83</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Costs</topic><topic>Disk drives</topic><topic>Error correction codes</topic><topic>Fault tolerant systems</topic><topic>Maintenance</topic><topic>Multidimensional systems</topic><topic>Reliability</topic><topic>Runtime</topic><topic>Standards organizations</topic><toplevel>online_resources</toplevel><creatorcontrib>Burkhard, W.A.</creatorcontrib><creatorcontrib>Menon, J.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Burkhard, W.A.</au><au>Menon, J.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Disk array storage system reliability</atitle><btitle>FTCS-23 The Twenty-Third International Symposium on Fault-Tolerant Computing</btitle><stitle>FTCS</stitle><date>1993</date><risdate>1993</risdate><spage>432</spage><epage>441</epage><pages>432-441</pages><issn>0731-3071</issn><eissn>2375-124X</eissn><isbn>0818636807</isbn><isbn>9780818636806</isbn><abstract>Fault tolerance requirements for near term disk array storage systems are analyzed. The excellent reliability provided by RAID Level five data organization is seen to be insufficient for these systems. The authors consider various alternatives - improved MTBF and MTTR times as well as smaller reliability groups and increased numbers of check disks per group - to obtain the necessary improved reliability. Two data organization schemes based on maximum distance separable error correcting codes are introduced. Several figures of merit are calculated using a standard Markov failure and repair model for these organizations. Based on these results, the multiple check disk approach to improved reliability is an excellent option.</abstract><pub>IEEE</pub><doi>10.1109/FTCS.1993.627346</doi><tpages>10</tpages></addata></record> |
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identifier | ISSN: 0731-3071 |
ispartof | FTCS-23 The Twenty-Third International Symposium on Fault-Tolerant Computing, 1993, p.432-441 |
issn | 0731-3071 2375-124X |
language | eng |
recordid | cdi_ieee_primary_627346 |
source | IEEE Electronic Library (IEL) Conference Proceedings |
subjects | Costs Disk drives Error correction codes Fault tolerant systems Maintenance Multidimensional systems Reliability Runtime Standards organizations |
title | Disk array storage system reliability |
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