On 13 Jun 2017, Predrag Punosevac wrote:
(snip)
> The simplest thing to do is to rsync from one system to another. Very
> simple, but the problem is it's just a "dumb mirror" - there is no
> history, no versions in the past (snapshots in time) and every day you
> do your rsync, you risk clobbering old data that you won't realize you
> need until tomorrow. "

It's worth noting that backing up to a large removable target volume
allows use of rsync's --link-dest option making it easier to efficiently
keep multiple snapshots if one doesn't often rearrange one's filesystem.

(snip)
> His prices are reasonable. Other formaly inexpensive methoods of
> archiving involve burning DVDs and taking them to a remote storage.
(snip)

These days TB-scale external SSDs a make for a handy way to then get
the data off-site: for many typical situations they allow storage of
multiple backups for which we didn't have to be too picky about what
goes onto them. (Those with enterprise-scale money and needs are
obviously in a rather different category.)

One size doesn't fit all, but rsync --link-dest to high-capacity
external drives is such a handy option these days for easily browsed
past backups that I figured it was worth mentioning explicitly on top
of your excellent general article.

-- Mark

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