-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Saturday, 2018-01-13 at 00:40 -0500, Anton Aylward wrote:
On 12/01/18 10:43 PM, Carlos E. R. wrote:
On 2018-01-13 02:27, Anton Aylward wrote:
[snip]
On the one hand there are the 'snapshot management' types such as dev-dup and backintime that need to maintain a database and really are a dis-to-disk(-to-offline) so that the snapshots are easily recoverable
Need a big disk for destination. Can't use DVDs.
DVDS are under Cdn$15/100 on the street herefor the generics that sem to have a failure rate of less than 0.01%. I don't know what their lifetime is, but it seems to be at least 5 years :-)
SATA rotating Rust is about Cdn$50/Terabyte.
The real advantage to me of DVD is that I have lots of shelf space but not many drive slots or SATA ports.
Yes I know about external drives, but that gets into housing and power supplies. Ultimately its just as "off line" as the DVDs.
I bought a Blue ray writer days ago, I still have to try it. With this media: <http://www.verbatim.com/prod/m-disc/m-disc-bd-r/branded-surface.-sku-98913/> Guaranteed (!) to last 1000 Yrs. Sizes 25, 50, 100 GB. I intend to use them to backup the photo and document directories at least.I bought just a box of 25GB for the initial testing, they are a bit expensive. I don't know how to handle encryption yet.
What we need is a K3B that is super-super smart, since I really don't fancy trying to all this with shell script.
I'm sleepy.
Let me say that the best backup program I have ever used was PCtools Backup, before the 90's. For MsDOS.
Hmmm.
It was truly good. When it finished a floppy, it prompted for the next, and would detect it automatically without needing a key. I had a two floppy drive machine, and it would alternate the drives, so that I would have the next floppy ready for it in time - usually, it was so fast that sometimes I was not ready. It detected errors and solved them easily. Some people I think had automatic floppy feeders. The machine would take them from a pile without human intervention. I never saw one. I just googled for photos and it finds me cat feeders instead. Sigh.
I used it with floppies. It was so fast that I barely had time to write the label on the floppies. It formatted them on the go. It could verify them. It wrote the index of files on the last floppy, and on a file on the hard disk. A file could span more than one floppy. It did compression on the fly, and used forward error recovery (it could recover bad sectors).
It did full backup or incremental writing changed files automatically, taking note of deleted files too. I could define a list of directories and files to include or exclude.
I miss it. I don't understand how thirty years later there is nothing similar for DVDs on Linux. Or any other media.
Hmmmm. Sounds like a project. Who wrote the original, do you know?
No idea, it was commercial. Some commercial products had the names of the programmers hidden somewhere in the help or about windows with a secret combination of keys. For example, on Borland IDE it was Alt-I, I think. - -- Cheers, Carlos E. R. (from openSUSE 42.2 x86_64 "Malachite" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlpaFsQACgkQtTMYHG2NR9Vy6ACcDM+WzpJOOuXLoQIPmw0RbEqd sPQAnAhCzrX24IMK9kVg/I0NBgETqCKO =5Xnr -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org