Provide guidance for space usage.
Question asked by a rdiff-backup user:
Anyway, I am wondering if there is any guidance on how much larger the target file system should be compared with the source file system when using rdiff?
Provide some guidance and mathematics formula.
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Here the answer provided by me:
Here the rules I have when I have little information about he filesystem usage:
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For business, I multiply the average data size by how many year they want to keep. So if the business have around 150GiB of data and want to keep them for 5 year: 150 x 5 = 750GiB is a good start. That also account for the business growth and files changes.
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For desktop users is different, the data change less often. I usually just double the capacity. For a user with 250GiB, I will plan 500GiB.
Hope it's helping you to plan the capacity.