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17 lines
754 B
Text
17 lines
754 B
Text
Enhancement: Restore files with long runs of zeros as sparse files
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When using `restore --sparse`, the restorer may now write files containing long
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runs of zeros as sparse files (also called files with holes), where the zeros
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are not actually written to disk.
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How much space is saved by writing sparse files depends on the operating
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system, file system and the distribution of zeros in the file.
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During backup restic still reads the whole file including sparse regions, but
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with optimized processing speed of sparse regions.
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https://github.com/restic/restic/issues/79
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https://github.com/restic/restic/issues/3903
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https://github.com/restic/restic/pull/2601
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https://github.com/restic/restic/pull/3854
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https://forum.restic.net/t/sparse-file-support/1264
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