Re:Rsync's defaults are not always enough
by 0rzech on Tuesday June 03, 2025 @06:19AM
(#44168351)
Checksums are slow on HDDs and using SSDs for backups is a bad idea, particularly for cold backups, due to data longevity and the tendency for SSDs to experience sudden total failures instead of gradual degradation.
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The -c makes it do more reads, though, not unnecessary writes
Degradation won't get worse except when a file changed without metadata having been modified, but then that's exactly what you want