News for hackers. Stuff that matters.
Re:The Instagram Architecture Facebook Bought for a Cool Bil... by wazoox on Tuesday April 10, 2012 @10:06AM (#3822202)
Except for the part where you want integrity; AFAIK only xfs guarantees truly atomic snapshotting thanks to xfs_freeze.

Furthermore, it's also (by an extremely large margin) your best choice if you need a filesystem bigger than 16 TB.

Re:The Instagram Architecture Facebook Bought for a Cool Bil... by regularfry on Tuesday April 10, 2012 @11:53AM (#3822752)
Allegedly other filesystems have had a similar freeze added since then.
Re:The Instagram Architecture Facebook Bought for a Cool Bil... by wazoox on Tuesday April 10, 2012 @03:52PM (#3824043)
Actually it was added to the vfs layer IIRC, around 2.6.30.