On 01/14/2019 09:31 PM, Chris Albertson wrote:
The blu rays work but the backup internal is to long. It really needs to
be done every hour. Hourly backup is best done with a hard drive.
HOUR? Well, really, my Linux systems stay up a log time. I
just rebooted my main desktop system after 540 days
continuous running. My Asterisk phone system recently
crashed and I had to do a manual fsck after about 15 months
running. My main server (router/firewall, web, mail, ssh,
dns, etc.) has been up 317 days.
A simple and painless way is to subscribe to a service. The guys who run
the the big cloud can buy storage cheaper then you can and they have
peta-bytes and do all the maintenance and upgrades for you.
I don't trust these cloud services. I had a cheap (but not
free) secondary name server that went out of business with
no warning or anything. I'd just done a 2-year renewal.
Just one day their service stopped working.
One problem with using small media is that to restore it you have to know a
lot. Typically each disc is only the delta from a full snapshot so to
restore you first restore the last ful image then you have to restore each
change disc.
True on my hard drive backup, NOT true on the blu-ray
backup. Every one is a full backup.
One of the problems with the incremental backup is if one of
the deltas is seriously bad, like completely unreadable, you
have a major mess to reconstruct what you can. And, if the
last update to a file was on the bad delta, it is just gone,
you only have the oldest version on the full backup.
I don't consider a blu-ray as "small media". It is
22-something GB. It will hold pretty much all of my main
user file tree.
I have my pictures and various CNC manuals in another file
tree, and back that up to another blu-ray.
Jon
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