As consumers are becoming more and more to digital distribution, data center operators are trying various storage methods, and the CD -ROM technology has not stopped developing.A recent paper explains how the manufacturer can create a CVD -like disc that can accommodate hundreds or thousands of Blu -ray disc data.
Researchers at Shanghai Institute of Technology have developed a CD -ROM with a data capacity of more than 1 PETABIT, which is equivalent to more than 100 TB.Although this technology is mainly proposed for enterprises, after overcoming major obstacles, the consumer level may also obtain this technology at the level of consumer.
Scientists have greatly increased the capacity of the disc.This technology uses a highly transparent, uniform photoresal film, which is mixed with gathering induced emitting dyes and stimulated by femtosecond laser.
In this way, it can be arranged by hundreds of layers at a micrometer with a micrometer on the same thickness as a DVD or Blu -ray disc.The most advanced Blu -ray CD can support up to four layers, usually stored about 100GB of data.In contrast, researchers claim that their new format can record 100 layers on each side of the disc, with a total capacity of 1.6 Petabits, or about 200 TB.
Stacking many PETABIT storage medium together, the scale of the Exabit data center can be reduced to a small part of the current typical scale.Integrating server can also greatly reduce calories and energy consumption.In addition, the use of large -capacity discs can also simplify the data migration process and minimize the migration demand.Another potential advantage is long service life-researchers said that the service life of the Petabit CD can reach 50 to 100 years.
Although this new media can be compatible with the current discalities, researchers have not developed fast and economical drives.If this kind of drive appears, the amount of data stored in the new disc is comparable to dozens of hard disk drives, 2000 PlayStation 5 game CDs or 4K Blu -ray CD -ROM.
In addition to media playback, developers also believe that the Petabit CD can also allow individuals or families to have data centers and store all important information on one hard disk at home, rather than multiple devicesOn the cloud server.
Other new large -capacity storage methods are also under research.In 2021, researchers at the University of Southampton proposed a "5D" method that stored data on the glass disc.Using energy -saving laser, this technology can store 500TB of data on the DVD -sized CD, but it also needs to increase the speed of reading and writing.
