China Achieves Mass Production Breakthrough with 360TB Glass Hard Drives
Researchers at Huazhong University of Science and Technology (HUST) have achieved small-scale mass production of glass-based hard drives, a breakthrough that could transform enterprise cold data storage. Each glass disc can store a staggering 360 terabytes of data across 400 stacked layers, using laser "carving" technology that writes data into the internal structure of the glass medium.
This is seriously cool. Although the current specs are a bit funny - if you take the largest possible disc size (360 TB), then it would take a million hours to fully write it at 10 MB/s (more if the storage unit is actually TiB). That’s over a hundred years.
Also if the goal is datacenter archival, then I wonder what the plan for practical use is - many individual discs with separate write “heads” (basically a RAID 0) to bring the speed up? And then maybe the maximum size per disc is a theoretical limit for the technology once we get faster access rather than something practical they intend to build anytime soon.