{"action":"closed","issue":{"url":"https://api.github.com/repos/facebook/flashcache/issues/200","labels_url":"https://api.github.com/repos/facebook/flashcache/issues/200/labels{/name}","comments_url":"https://api.github.com/repos/facebook/flashcache/issues/200/comments","events_url":"https://api.github.com/repos/facebook/flashcache/issues/200/events","html_url":"https://github.com/facebook/flashcache/issues/200","id":55806300,"number":200,"title":"Switching off cache during backup","user":{"login":"drequivalent","id":1463277,"avatar_url":"https://avatars.githubusercontent.com/u/1463277?v=3","gravatar_id":"","url":"https://api.github.com/users/drequivalent","html_url":"https://github.com/drequivalent","followers_url":"https://api.github.com/users/drequivalent/followers","following_url":"https://api.github.com/users/drequivalent/following{/other_user}","gists_url":"https://api.github.com/users/drequivalent/gists{/gist_id}","starred_url":"https://api.github.com/users/drequivalent/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/drequivalent/subscriptions","organizations_url":"https://api.github.com/users/drequivalent/orgs","repos_url":"https://api.github.com/users/drequivalent/repos","events_url":"https://api.github.com/users/drequivalent/events{/privacy}","received_events_url":"https://api.github.com/users/drequivalent/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":11,"created_at":"2015-01-28T19:52:53Z","updated_at":"2015-04-16T14:58:35Z","closed_at":"2015-04-16T14:58:35Z","body":"We've been switching off flashcache globally during full-disk backup for quite a while now, to prevent SSD health wear-off. Then it got us thinking: does it even make any sense to do it?\r\nHow drastically does one Rsync pass wear an SSD off? Do the files get into cache as soon as they are being read, or does it have to be read several times?\r\nOr is it more sensible to use flashcache blacklist in order to prevent Rsync from caching?"}}