Unlimited cloud storage provider used old tech to boost upload speed – Robson, son of Intel, makes modest returns with SSD cache, but on a much, much larger scale

Blackblaze claims to have achieved upload speeds on its B2 Cloud Storage platform that are up to 30% faster than AWS S3 by using a ‘shard inventory’ based on solid-state drives (SSDs).

Previously, when customers uploaded small files to Blackblaze B2, the data was written to several hard drives and had to be completed before a response was sent back to the customer. But data is now written to both HDDs and some SSDs – known as the ‘shard stash’. The data on the SSD is only stored until the hard drives receive all the data, at which point these copies are deleted. Because uploading to the SSD is much faster than to the HDD, the uploads are faster.