End-to end data protection supporting multiple CRC algorithms

摘要

A technique for providing end-to-end data protection while supporting multiple cyclic-redundancy-check (CRC) algorithms includes receiving a data block protected by a first CRC. The first CRC is generated using a first CRC algorithm. The integrity of the data block is checked using the first CRC and the first CRC algorithm. A second CRC for the data block is then computed using a second CRC algorithm different from the first CRC algorithm. The data block, first CRC, and second CRC are stored on a storage medium, such as magnetic tape.

主权项

1. A method for providing end-to-end data protection while supporting multiple cyclic-redundancy-check (CRC) algorithms, the method comprising:
receiving, by a storage device from a first host device, a data block protected by a first CRC, the first CRC generated by a first CRC algorithm; checking, by the storage device, the integrity of the data block using the first CRC and the first CRC algorithm; computing, by the storage device, a second CRC for the data block using a second CRC algorithm different from the first CRC algorithm; and storing, by the storage device, the data block, the first CRC, and the second CRC on a storage medium.