Each and every company needs archival storage and compressed data file on a focused storage server to meet the requirements. The tape storage system is ending and the optical storage system is emerging into the present. But the Holographic Data Storage Technology, explains everything about the next future. This system considers the potential obstacles and deployment ahead for this high-capacity optical storage scheme.
Holographic Data Storage is a high-level data storage technology that quickly enables 3D type holographic images and stores the whole data via a supported medium. The high-level data storage technology currently proceeded by magnetic data storage and the optical data storage technology. The concept is similar to the optical data storage technology. But it enables the single storage volume to store a large amount of data. It can deliver multiple image details recording over the same area utilizing a light at different angles.
How does it work?
Holographic storage works by storing a sequence of discrete data images within the dimensions of the media file. The storage prices start when a laser beam splits into two signals – one carries actual data and another carries as a reference laser beam. Both the beans are individually reflected, refracted, and passed through a series of processes before being inserted into any storage medium.
The data carrying beam is passed through a device called Spatial Light Modulator (SLM), which acts as a fine shutter system, passing and blocking light at points related to ones and zeros. At the point of intersection, a three-dimensional 3D holographic image of the data is created and stored in the medium. The reference beam is again deflected with the same angle into the storage medium to extract the data.
Holographic storage uses the data as a circular media related to a blank CD or DVD that spins to accept the data along with a continuous spiral data path.
What are the features and benefits:
- Long-term media stability and reliability: it is a mixed advantage of deep archiving process (disc and tapes aren’t capable of up to 50 years stability).
- Portable: it allows the distribution of dense data that can’t be sent conveniently over networks.
- Bit Per Pulse: The current optical storage can save one-bit per pulse. But the Holographic Versatile Disc (HVD) can save around 60,000 bits per pulse.
- Maintenance Free: Holographic drives could be maintenance free and this will be an alternative option over tape drives, optical storage drives, and magnetic drives, which requires to clean the dust particles for reading & writing discs.
- Higher Capacity: Holographic storage offers higher memory optimization, which is more than 1 Terabyte (TB) of data (Data from 1,000 CDs could be saved on a holographic Versatile Disc system).
- Faster Transfer Rates: It provides 160 MB/sec data read/write speed rate. This could have been better of around more than 1 GB/sec transfer rate in the future.
How the Holographic Drives Specified and Deployed?
Though, the definition of Holographic Storage deployment is theoretical because there are no commercial products available right now. There are no Holographic products or any application available by which can evaluate the value, performance, reliability. The Spatial Light Modulator is a critical part of the overall drive capacity and performance. SLMs drives use a 1,000 × 1,000 pixel matrix (1 million bits) to modulate laser light and encode each data page in today’s time. If SLMs drives can offer more fine bits faster then it could generate more storage capacity.
This will allow more data files to read/write on a single disc faster. The current Holographic data storage capacity and performance are the below disc system process.
What’s the Future of the Holographic Storage Technology?
Actually, the future of Holographic Data Storage Technology is full of mysteries and unknown facts. The aspect of technology developments and improvements are still accepted by industries. The Holographic Technology is taking step towards a storage category market. There might be some Holographic Hybrid Media will introduce in future and we will see this. But the rewritable flash memory disc and faster RAM with significant quantities are issues. The Tape Storage Disc can read the data which was written 50 years ago but can’t read or write in present. Simultaneously, the Holographic Data Storage Disc can read/write data after 50 years or more from now.
This technology is very promising. I’ve been hearing about it for years. But at this point, the No. 1 concerns are [high] cost and [product] immaturity.
-Garrett Electronics Inc.
Though the Holographic Data Storage Technology is easier to come in future, there are so many things to solve first and that will cost a huge expense and so many years as well. Such as, if so many pages are stored in one crystal, the strength of each Hologram will be decreased. If there are too many Holograms stored on a crystal and the reference laser used to retrieve a Hologram isn’t shined at a precise angle, a Hologram will pick up a lot of background from other Holograms.
It also challenges to align all of these components in a low-cost system. In general, Holographic Data Storage (HDS) has no substantial standards endorsed by the International Standards Organization (ISO). The lack of standardization could work against HDS by conflicting between data and media files. Researchers are confident that the within two or three years, there could be some general technologies will be developed to meet the basic requirements for HDS technology. By this technology, we can store the data up to 27-times greater than the 4.7-GB DVDs available today. The HDS discs can also stream and transfer data around 25-times faster and reliable bitrates than DVDs players.
So, what do you think about the Holographic Data Storage Technology? Would you like to see the Holographic Versatile Disc (HVD) in the markets? Share your thoughts below.