alexan...@nautae.eti.br wrote: >> reliable because they use redundancy and are able to detect and replace >> failed memory cells. >> That's why I would probably trust a DVD more than solid-state. >> Ultimately, though, all media fails. Tapes wear out, too. > > I don't know about solid-state devices. > > But I think if I can make a safe write on a DVD-R (comparing the > checksum) probably I won't have to worry about the media for one or > two years. > > Using a disk... If something is wrong with the electronic device, my > read after two years can destroy everything in one single step. > > Of course If I have a laser problem on DVD device... but have you ever > noticed about a laser problem that had destroyed an -> already <- > written DVD media when you just want to -> read <- data? > > I think DVDs is really reliable to keep data readable (one or two > years, wherever), but not to write. And disks is more reliable to > write and not to read. > > Of course what I'm saying is about a -> crash <- at the restore > moment, not a misunderstood byte or something. > > Normally I have to scratch a DVD-R on the wall or write wrong data to > destroy my day at a restore moment. If I use a disk... I think it will > always be a stressed restore moment. > > DVD-R just seems to be like a piece of paper, extremely fragile, but > extremely simple. > > But, of course, I'm not a specialist, I don't know if a solid-state is > more simple than a burned piece of plastic. > > I'm really enjoying this discussion. I hope I'm not insisting on a > redundant discussion. Sorry if it's the case. > > []'s > Alexander > Brazil - Rio de Janeiro >
Well, when I need a restore ( I've always my data at twice device at the same time ) you could always mount the disk RO so there's no chance to destroy something. Backup disks on my place are estimated to be used 3 to 5 years ( always under the manuf. warranty ) I've always a double of the data written on it, and those devices are store at different place. Just in case of. I check frequently what devices has the best ration Place/Price to have the best price pro TB in a sum of what I need to store following my GFS rotation. But with 480GB per week I don't want to burn DVD :-) -- Bruno Friedmann ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users