Systems and methods for data compression and decompression

摘要

In one aspect, the present invention comprises one or more processors that generate a first checksum value for a data block and a second checksum value for the data block, wherein the first checksum value is generated by applying a first checksum algorithm to the data block and the second checksum value is generated by applying a second checksum algorithm, different from the first checksum algorithm, to the data block; one or more processors operable to create a data entry comprising data identifying: the first and second checksum values, the first and second checksum algorithms, and at least one of the identified attributes of the data block, the data entry not comprising the data block, and wherein the data block can be recovered using the data entry; and one or more processors that store the data entry in a computer-readable medium. Other aspects comprise related systems, methods, and software.

主权项

1. A system for data storage comprising:
one or more computer processors that generate a first checksum value for a data block and a second checksum value for the data block, wherein said first checksum value is generated by applying a first checksum algorithm to said data block and said second checksum value is generated by applying a second checksum algorithm, different from said first checksum algorithm, to said data block; one or more computer processors operable to create a data entry comprising data identifying: the first and second checksum values, the first and second checksum algorithms, and at least one attribute of the data block, said data entry not comprising said data block, and wherein said data block can be recovered using said data entry; and one or more computer processors that store said data entry in a computer-readable medium, wherein said one or more processors may be the same or different processors.