High availability is widely accepted as an explicit requirement for distributed storage systems. Tolerating correlated failures is a key issue in achieving high availability in today\u2019s wide-area environments. This paper systematically revisits previously proposed techniques for addressing correlated failures. Using several real-world failure traces, we qualitatively answer four important questions regarding how to design systems to tolerate such failures. Based on our results, we identify a set of design principles that system builders can use to tolerate correlated failures. We show how these lessons can be effectively used by incorporating them into IRISSTORE, a distributed read-write storage layer that provides high availability. Our results using IRISSTORE on the PlanetLab over an 8-month period demonstrate its ability to withstand large correlated failures and meet preconfigured availability targets.<\/p>\n","protected":false},"excerpt":{"rendered":"
High availability is widely accepted as an explicit requirement for distributed storage systems. Tolerating correlated failures is a key issue in achieving high availability in today\u2019s wide-area environments. This paper systematically revisits previously proposed techniques for addressing correlated failures. Using several real-world failure traces, we qualitatively answer four important questions regarding how to design systems […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":[{"type":"user_nicename","value":"sumann","user_id":"33753"},{"type":"text","value":"Haifeng Yu","user_id":0},{"type":"text","value":"Phillip B. 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