{"id":267,"date":"2009-10-12T09:33:43","date_gmt":"2009-10-12T14:33:43","guid":{"rendered":"http:\/\/blog.espol.edu.ec\/hadoop\/?p=267"},"modified":"2009-10-12T10:49:24","modified_gmt":"2009-10-12T15:49:24","slug":"errores-en-memoria-dram-pueden-afectar-a-data-centers","status":"publish","type":"post","link":"https:\/\/blog.espol.edu.ec\/hadoop\/2009\/10\/12\/errores-en-memoria-dram-pueden-afectar-a-data-centers\/","title":{"rendered":"Errores en memoria DRAM pueden afectar a data centers"},"content":{"rendered":"<p>Un <a href=\"http:\/\/www.cs.toronto.edu\/~bianca\/papers\/sigmetrics09.pdf\">estudio reciente<\/a> publicado por\u00a0una <a href=\"http:\/\/www.cs.toronto.edu\/~bianca\/\">profesora<\/a>\u00a0de la Universidad de Toronto y gente de Google ha\u00a0encontrado que los errores en memoria DRAM (memoria principal) son mucho\u00a0 m\u00e1s com\u00fanes de lo que se pensaba anteriormente. Esto tiene implicaciones importantes en los sistemas actuales, sobre todo para data centers implementados con componentes de bajo costo (los cuales vienen sin mecanismos de correcci\u00f3n de errores para la RAM).<\/p>\n<p>A continuaci\u00f3n, listo las\u00a0conclusiones finales de la investigaci\u00f3n:<\/p>\n<p>\u00a0<\/p>\n<blockquote>\n<ol>\n<li><span style=\"color: #808080\">We found the incidence of memory errors and the range of error rates across different DIMMs to be much higher than previously reported.<\/span><\/li>\n<li><span style=\"color: #808080\">Memory errors are strongly correlated.<\/span><\/li>\n<li><span style=\"color: #808080\">The incidence of CEs increases with age, while the incidence of UEs decreases with age (due to re-placements).<\/span><\/li>\n<li><span style=\"color: #808080\">There is no evidence that newer genera-tion DIMMs have worse error behavior.<\/span><\/li>\n<li><span style=\"color: #808080\">Within the range of temperatures our production systems experience in the field, temperature hasa surprisingly low effect on memory errors.<\/span><\/li>\n<li><span style=\"color: #808080\">Error rates are strongly correlated withutilization.<\/span><\/li>\n<li><span style=\"color: #808080\">Error rates are unlikely to be dominatedby soft errors.<\/span><\/li>\n<\/ol>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Un estudio reciente publicado por\u00a0una profesora\u00a0de la Universidad de Toronto y gente de Google ha\u00a0encontrado que los errores en memoria DRAM (memoria principal) son mucho\u00a0 m\u00e1s com\u00fanes de lo que se pensaba anteriormente. Esto tiene implicaciones importantes en los sistemas actuales, sobre todo para data centers implementados con componentes de bajo costo (los cuales vienen [&hellip;]<\/p>\n","protected":false},"author":1510,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1465,708],"tags":[12132,354],"class_list":["post-267","post","type-post","status-publish","format-standard","hentry","category-investigacion","category-negocios","tag-datacenter","tag-google"],"_links":{"self":[{"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/posts\/267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/users\/1510"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/comments?post=267"}],"version-history":[{"count":7,"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/posts\/267\/revisions"}],"predecessor-version":[{"id":269,"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/posts\/267\/revisions\/269"}],"wp:attachment":[{"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/media?parent=267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/categories?post=267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/hadoop\/wp-json\/wp\/v2\/tags?post=267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}