Facebook's Tectonic Filesystem: Efficiency from Exascale. - Satadru Pan; Theano Stavrinos; Yunqiao Zhang; Atul Sikaria; Pavel Zakharov; Abhinav Sharma; Shiva Shankar P.; Mike Shuey; Richard Wareing; Monika Gangapuram; Guanglei Cao; Christian Preseau; et al. (FAST, 2021)