zlacker

>>tpmx+(OP)
HN was down because the failover server also failed: https://twitter.com/HNStatus/status/1545409429113229312

Double disk failure is improbable but not impossible.

The most impressive thing is that there seems to be no dataloss, almost whatsoever. Whatever the backup system is, it seems rock solid.

>>sillys+z
> Double disk failure is improbable but not impossible.

It's not even improbable if the disks are the same kind purchased at the same time.

>>davedu+b2
I once had a small fleet of SSDs fail because they had some uptime counters that overflowed after 4.5 years, and that somehow persistently wrecked some internal data structures. It turned them into little, unrecoverable bricks.

It was not awesome seeing a bunch of servers go dark in just about the order we had originally powered them on. Not a fun day at all.

>>kabdib+iv
I had a similar issue, but it was a single RAID-5 array and wear of some other manufacture defect. They were the same brand, model, and batch. When the first failed and the array got in recovery mode I ordered 3 replacements and upped the backup frequency. It was good that I did that because the two remaining drives died shortly after.

The lesson I learned is that the three replacements went to different arrays and we never again let drives from the same batch be part of the same array.