Just to add my 2c considering I started the other thread,

I'm not aiming to replace my backups and data is indeed in three places;

My main drive (esata)
My backup drive (USB)

Another backup drive connected to a computer at my parents place, using crashplan over the Internet. 

The holes in this plan that I can see are:

1. Bitrot (discussed in other thread)
2. All backups are online. Someone malicious on my main pc could potentially wipe the remote backup through the crashplan GUI. This is a hole I'd like to fix but it may be too inconvenient to fix at the moment. Some form of online but write only storage would be stellar.

-Noah

On Tuesday, July 1, 2014, <zlinw@mcmedia.com.au> wrote:
I have been reading the "btrfs/ZFS, sans raid and bitrot" thread and a
number of thoughts and questions spring to mind.

I get the impression that some are looking for a single reliable storage
solution to avoid having to do backups.

Surely this is impossible, I certainly would ______NEVER______ (excuse the
shouting) ever trust my life to a single system if at all possible. When
one is doing instrument flying training as a pilot you are constantly told
never to rely on a single instrument but scan all of them and come up with
an overall coherent picture. If one relies in such circumstances on a
single point of failure you __will__ kill yourself.

One is told raid or any such thing is a reliabilty strategy __not__ a
backup strategy.

I personally keep all data I consider important on four separate
systems/devices one device (which is in fact duplicate items but differing
technolgies) being kept off site. Maintaining this is a bit of a pain but
there is no other way as far as I can see.

The reason for the number of separate backups is we had in one instance in
a large commercial situation managed to destroy two backs trying to restore
a system. We only succeeded in the end becuase I had independantly
duplicated one of the backups on another system.

Lindsay
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