Data protection and recovery

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An Accesser is the iSCSI target and is mounted as a drive to the Source Computer. The Accesser software transparently stores and retrieves slices to the separate Slicestors even though the files appear as singular files within the file system on the Source Computer. Cleversafe Dispersed Storage employs Slicestors to store unique Slices (not copies of data). Due to the Cauchy Reed-Solomon Information Dispersal Algorithm (IDA) used in Cleversafe Dispersed Storage software, this design allows complete data retrieval if the threshold number of Slicestors are available.
An Accesser is the iSCSI target and is mounted as a drive to the Source Computer. The Accesser software transparently stores and retrieves slices to the separate Slicestors even though the files appear as singular files within the file system on the Source Computer. Cleversafe Dispersed Storage employs Slicestors to store unique Slices (not copies of data). Due to the Cauchy Reed-Solomon Information Dispersal Algorithm (IDA) used in Cleversafe Dispersed Storage software, this design allows complete data retrieval if the threshold number of Slicestors are available.
A Cleversafe Dispersed Storage Network (dsNet) can tolerate multiple failures of hardware, storage locations or administrators, while still keeping data secure and easy to reassemble. Only a majority of Slices is needed to perfectly recreate the original data. Dispersed Storage is typically configured to have 99.9999999999% (12 nines) of availability, and may be configured up to 99.99999999999999% (16 nines) of availability. Because Dispersed Storage eliminates the need to store multiple copies of data,  the amount of overall storage expansion of data is only 30-100 percent more than original data. By contrast, copy-based storage methods typically make three to four copies, resulting in a 300 percent to 400 percent expansion, which increases cost and synchronization traffic.
A Cleversafe Dispersed Storage Network (dsNet) can tolerate multiple failures of hardware, storage locations or administrators, while still keeping data secure and easy to reassemble. Only a majority of Slices is needed to perfectly recreate the original data. Dispersed Storage is typically configured to have 99.9999999999% (12 nines) of availability, and may be configured up to 99.99999999999999% (16 nines) of availability. Because Dispersed Storage eliminates the need to store multiple copies of data,  the amount of overall storage expansion of data is only 30-100 percent more than original data. By contrast, copy-based storage methods typically make three to four copies, resulting in a 300 percent to 400 percent expansion, which increases cost and synchronization traffic.
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