Hi Tim,
> External USB SSD SDB
> SDB1 backup
...
> The install wiped and partitioned of my SDB (which became SDC) drive
> wiping out over 18months of backups.
...
> That will teach me to play around with a system that was working
> fine.............
Don't have precious data on external drives needlessly connected. Just
connect when writing and to periodically read all the blocks to ensure
they're still readable and allow repair of those which struggled.
When an SSD or other NAND-flash device is brand new, its unpowered
data retention will be several years...
it gets shorter as it experiences wear and tear, by writing data
— https://www.crucial.com/support/articles-faq-ssd/ssds-and-smart-data
--
Cheers, Ralph.
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