| The terabyte can be easily explained as a unit of | | | | WHERE TERABYTE? |
| computer memory or data storage capacity equal to | | | | Another popular application of terabytes is for NAS |
| 1,024 gigabytes (240 bytes) OR One trillion bytes | | | | .ie, Network Attached Storage is the name given to |
| History stands testimony that no other technology | | | | network storage which facilitates centralized access |
| can boast of being as eagerly anticipated as 1 | | | | to data and centralized data storage facilities for |
| Terabyte hard drives. These long awaited and much | | | | heterogeneous clients. Simply put, this means NAS is |
| deserved drives have altered the digital landscape | | | | an array of hard disks including multi disk RAID |
| forever. Mega bytes to Giga Bytes and Giga Bytes | | | | systems along with software's to map file locations |
| to TeraBytes. The evolution hasn't been as steadfast | | | | on the network attached device. Within the storage |
| as imagined. Yet, thanks to the perpendicular | | | | network, it is possible to set user priorities using a |
| magnetic recording technology, 1 TB has finally hit the | | | | web browser. The NAS is set up with its own |
| floors. | | | | network and not attached to the main server. This |
| Everybody knows that data is recorded on hard | | | | system of storage reduces the burden on the main |
| drives platters by a write head through magnetization | | | | network server and provides access and storage |
| and demagnetization. Usually the bits thus recorded | | | | facilities to NAS network users. |
| are placed in a linear fashion. PMR records data by | | | | 1 TB drives means more space for network attached |
| perpendicular arrangement of magnetic bits on the | | | | storage. This means facility for storage of about |
| surface of the platter. The north south poles of the | | | | 250,000 songs, 350 movies, 1000 hrs of video, |
| magnetic bits on the platters of the disk are not | | | | 333,300photos, or more than 500 full version games. |
| aligned linearly but perpendicularly which enables high | | | | With the introduction of such advanced storage |
| density storage due to greater number of bits on the | | | | systems, it is possible to erase data storage limits. |
| same platter. This technology offers information | | | | TERABYTE Hard Drives - A Challenge Data Recovery |
| densities of up to 1 Tbit/sq. inch (1000 Gbit/sq. inch) | | | | Software companies? |
| as opposed to100 to 200 gigabit per square inch | | | | No Doubt, terabyte hard drives is a revolution in the |
| offered by linear recording technology. | | | | scenario of hard drive capacity. However, with every |
| WHY TERABYTE? | | | | revolution there is a darker side of it. These high |
| New breakthroughs in the field of digital media and | | | | capacity hard drives would be practically storing tons |
| recording of videos through internet and television | | | | of valuable data in it, and the hard failure or any |
| have increased the appetite for storage. In spite of | | | | software malfunction can make the hard drive data |
| this, the need for Tera bytes was fiercely debated | | | | inaccessible. Leading to data Loss ... |
| time and again. But with their arrival, this question | | | | So we would be needing data recovery, and we |
| seems to be out of place. Massive storage needs | | | | know that nearly all the data recovery company in |
| have forced the leading hardware companies to | | | | the market are recovering data through scanning the |
| come out with their own 1 TB drives. Hitachi was | | | | hard drive sector & block wise. So with this |
| first in this category followed by Seagate and | | | | large hard drive space, Data Recovery Software |
| Samsung. The features of these drives are given | | | | would be needing a large amount of time to scan the |
| below: | | | | hard drives and recover the files. So scanning high |
| Hitachi | | | | capacity hard drives is a challenge for Data Recovery |
| Model:Deskstar7k1000, Cinema Star | | | | companies. They have to come up with some new |
| Seek time:8.7 ms (read) | | | | technology to face the challenge. This would be going |
| Cache memory: 32 mb | | | | to more tougher as there are many more companies |
| Rpm:7,200 rpm | | | | who are coming up with more high capacity hard |
| Platters:5 | | | | drives. |
| Acoustics:2.9 bels | | | | Stellar Information, A data recovery company, having |
| Density:140 mn bits/q inch | | | | an experience of around 15 years in the field of data |
| Interface: SATA | | | | recovery have came in front with his new updated |
| Advantageso High cache memoryo Massive capacity; | | | | software which uses very advance algorithm to |
| great performance | | | | perform high speed scanning. The scanning speed of |
| Disadvantages: More capacity means more data to | | | | Stellar Phoenix Windows Data recovery Software - A |
| lose; | | | | Window Partition Recovery utility is more than 100% |
| Seagate | | | | faster than any other data recovery software |
| Model: Barracuda 7200.11 Barracuda ES.2, | | | | available in the market. |
| Seek time:8.5 ms | | | | WHAT NEXT after 1 TB? |
| Cache memory:32 mb | | | | While we are yet to come to terms with the |
| Rpm:7,200 rpm | | | | terabyte, computer scientists are doing massive |
| Platters:4 | | | | research and development to enable larger storage |
| Acoustics:2.7 bels | | | | platforms. Efforts are underway to create new data |
| Interface:SAS / SATA | | | | storage platforms having capacities upwards of 1000 |
| Advantages:o Unrecoverable error rate 10 times | | | | TB. One Indian scientist is working on making DVD's |
| better.o 1.2 million hour Mean Time Between Failure at | | | | which can be coated with a light -sensitive protein |
| full 24 x 7 data availability.o Leading 105MB/s | | | | and can store up to 50 terabytes (about 50,000 |
| sustained transfer rate - the highest ever | | | | gigabytes) of data. |
| Disadvantages: it's the most expensive desktop drive | | | | Going by these estimates, it is imaginable that data |
| to date. | | | | densities are soon set to reach unthinkable |
| Besides these Samsung's Spin Point F11 TB uses just | | | | proportions and data recovery services will definitely |
| three 334GB platters, a record in both areal density | | | | become more complex by the day. Data backups |
| as well as platter capacity. By contrast, 1TB drives | | | | and recovery services need an overhaul forthis. But |
| from Hitachi and Seagate use five 200GB and four | | | | one thing is sure....no matter what.......the terabyte |
| 250GB platters, respectively. 7200rpm motors, 16MB | | | | drives have definitely given us what we desperately |
| or 32MB cache (depending on the model) and are | | | | needed-- a peek into future of data storage |
| designed for Serial ATA-300 interface with native | | | | technology. It is time we prepare ourselves for larger |
| command queuing. The manufacturer declares 8.9ms | | | | data storage and efficient data recovery methods. |
| average read seek time and 4.17ms average latency. | | | | |