Facebook’scorpusofphotos,videos,andotherBinaryLargeOBjects(BLOBs)thatneedtobereliablystoredandquicklyaccessibleismassiveandcontinuestogrow.AsthefootprintofBLOBsincreases,storingtheminourtraditionalstoragesystem,Haystack,isbecomingin-creasinglyinefficient.Toincreaseourstorageefficiency