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Since you're obviously experienced in this area, can you point me to a tool or article that describes this 'scrubbing'? Is this something that people should be
by ciniglio 14y ago
Since you're obviously experienced in this area, can you point me to a tool or article that describes this 'scrubbing'?
Is this something that people should be using on their old files/backups?
- jl6 14y agoSearch for zfec. Allows you to split a file into N chunks, only M of which are required to reconstitute the original. Protects against N-M independent errors/corruptions.
- luser001 14y ago'scrubbing' is just a fancy way of saying that the files are read from media, checksums recomputed, and compared against stored checksums. If checksums are different and data was stored redundantly, then recovery is carried out, and correct data is written back to media. I'm too lazy and don't really do it with my multiple DVD, CDs and HDD backup directories. But ideally, I should be doing it. My startup will make this sort of thing easy and automatic.