Innovative and advantageous features are included in the VXA tape technology. A new system for error correction has been introduced in the VXA tape format that consists of four levels and is implemented in two phases. First of all Reed-Solomon ECC is included in each packet which removes the small errors. These small errors are normally generated by the phase shifts or noise. Afterwards the buffer segment collects all these packets. Then a matrix is formed and Reed-Solomon three dimensional ECC is employed. The three dimensional consists of Y-axis, Diagonal and X-axis ECC.
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As much as 2 lost packets can be corrected in each row, 2 in each diagonal and 2 in each column of the buffer array by this error correction system. So as a result the bit error rate in VXA tape technology reaches 1x10-17. This error rate can be understood by an example; it is like to find a single black grain in a football stadium that is completely filled with sand. Variable speed function is another advantageous and unique feature of VXA data tape format.
The main purpose of the variable system technique is to enable the VXA tape drive to adjust the speed of the VXA tape media and match it with the speed of the incoming data from the host. VXA is the pioneer tape technology that has devised a solution that has helped to overcome back hitching. The speed adjustment feature eliminates back hitching. This solution to back hitching has also helped to reduce media wear and time delays as well. Reduction of the wear of media and drive results in greater reliability and accuracy. Tape4backup dot com offers cheapest prices on all backup media tapes.
The tape speed can be varied in the VXA technology according to the speed at which the host system sends or receives the data. As the transferring of data from the host system completely stops, then before going to write or read mode the VXA tape drive slows down to ready-mode. Instead of back hitching, the VXA uses ready-mode that optimizes the operation times of data restore and backup. Tape4backup dot com is offering lifetime warranty on all backup tapes.
The reset time of the VXA tape format’s ready-mode is 25 milliseconds. In comparison to back hitch operations of other tape drives, the ready-mode of VXA tape technology can be 80 times faster. It takes up to 2 sec to complete the operations in other drives. The media reliability is improved in the VXA tape drive as it slows down gently in order to enter ready-mode. On the other hand, the forward motion is stopped in the traditional tape drives, it then accelerates backwards and then it has to again stop, and yet again move forward. Therefore, high tension is created by this back-hitch cycle. These forward & backward transient forces can damage the tape due to media ware. This continuous media wear with the passage of time leads to data reliability’s degradation. The most reliable, efficient and low cost data restore and backup is offered by packet technology of VXA format.
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