On 12/24/19 11:47 AM, Javier Perez wrote:
I have my /home partition on a 2TB HDD drive about half full. Should
be doing regular backups but not in the habit.
What is better?
A. Purchase a second 2TB to create a Raid1 mirror or
B. Purchase a second 4TB drive for backup purposes.
That depends on whether you want a) that computer to continue working
without interruption if a hard drive fails, or b) you want to be able to
rebuild the computer if a hard drive fails, or to be able to recover
data if it's accidentally removed, or to restore an old version of data
for any reason.
If you don't have regular, scheduled, automatic backups, then I would
personally prioritize B much higher than A.
If case B, should I get a USB3.0 adapter or similar so that I could
just plug the HDD, let it do the backup and unplug and store it? Or is
it better to install it on another networked pc and do it through the
network?
A directly-attached backup can be deleted by some types of accidental
removal of the data you want ("rm -rf /*"). A computer system should
have at least one backup that isn't mounted in the local filesystem.
Is there a better, easier, less troublesome option to keep the data
safe that does not involve the cloud?
Backups are probably the only purpose where I recommend "the cloud"
without reservation. Storage costs are typically lower than you'll get
on purchases of your own, and backups are more likely to survive events
like fire and theft.
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