[ignoramous]

> Another relevant point made in the video is that they restrict cells to a maximum size which then makes it easier to test behavior at that size.

Googlers would be quick to point out that Borg does this natively across all their services: https://news.ycombinator.com/item?id=19393926

[joshuamorton]

As another googler, I'd argue that Borg's concept of cells aren't like what Amazon is calling "cells" here. Borg cells are, as far as I can tell, akin to an AWS Zone. There are similar concepts within Google that match the concept of "an application unit that is in multiple compute units but is isolated from other similar application units, and can be used for a singular customer or workload". There are multiple terms for this concept, which I'd be happy to share within Google.