Ask PG: Postmortem of the outage?
It seems all activity from the past two days has disappeared -- backup storage is something you never regret paying for.You've probably all seen it by now, but from @HNStatus: [1]  Server back up and seemingly stable. Now restoring our latest backup to recover from limited filesystem corruption.

[1] https://twitter.com/HNStatus/status/420179162138021888