3 ms·
Ask HN: How many backup copies do Facebook/Google/yahoo maintain for user data?
I am curious to know how many copies of user data are maintained by majors like facebook, google, Microsoft, Yahoo etc. Is it really practical to expect a total data loss from these Biggies ?
- plasma 15y agoPretty sure Google by default keep around 3 separate copies. One copy on a particular server, another copy on a server in the same 'rack', and another copy either in another site or on a different rack. Then there's whatever backups they do daily etc.