--On Freitag, 26. Januar 2007 20:27 -0500 cy tune <[EMAIL PROTECTED]> wrote:
> On 1/26/07, Arno Lehmann <[EMAIL PROTECTED]> wrote: >> Hello. > > Hi > >> On 1/27/2007 12:23 AM, cy tune wrote: >> > Will DVD+R, DVD+RW, and DVD-RAM all work fine when I need multiple >> > disks for each task? If a weekly backup needs 3 disks, will that be >> > okay? Similarly for the other tasks. >> >> You mean, if you can mix the three media types? No. You can mix DVD+R >> and +RW but DVD-RAM is treated differently. If I remember correctly, growisofs happily writes to a dvd-ram, as long as your drive supports it. Please correct me if I'm wrong. > I didn't phrase it properly. I meant can I backup to several disks of > the same type for one task? If my daily backup takes 2 DVD+R disks, > is that okay? I'm not familiar with bacula dvd-writing... I leave this question for the bacula-dvd-versed to answer. :-) >> > Is there any different setup you would recommend? I looked into tape >> > drives but they are so expensive for the tapes and drives. >> >> The have much higher capacity, are more reliable, and more robust... I > > I'm not sure I would use the capacity though. > > It's about $8 per disk for a Verbatim double sided DVD-RAM disk (9.4 > GB) in a cartridge. Going the tape route would cost far, far more > wouldn't it? For small amounts of data (say a few GB) I would say this is true. DVD devices are cheap. Though nothing beats tape media comparing price/GB, still... >> prefer tape or, if offsite storage and the ability to endlessly add >> storage count less than speed (and price) disk. > > I'm not concerned about speed of a tape vs DVD. I am price conscious > at this point though. My old (unfortunate) method was a full backup > every 6 months with no incremental backups. I'm now looking at using > bacula for daily backups and weekly/monthly full backups. > > I had a tape drive on an older computer and never used it. It's > capacity is so small compared to today's hard drives. It seems to me > that by the time I would want to replace DVD-RAM disks, I would be > ready to upgrade my tape drive to support larger capacity tapes. By > the time I'm ready to replace the DVD-RAM disks, I could be buying > blu-ray or hd-dvd or whatever is sufficiently cheap at the time. > > Let me know if any of this is wrong. :) I like the bacula manual as > far as setting everything up. It looks clear how all the parts > integrated and how to write a config file for each part. What's not > clear is what backup media to choose and what kind of backup > strategies people use. > >> > with the hardware verification? I'm not sure >> > how to turn that on/off in Linux since it's just treated as a hard >> > drive. According to the wikipedia entry, it will take about twice as >> > long to write. >> >> Right, it takes longer and it's always on. This is not something you can >> turn on or off, AFAIK. The built-in verification makes DVD-RAM the most reliable medium in the DVD-zoo. Though it is also the slowest. I have seen far too many unreadable DVD+RW discs. I wouldn't recommend these for backups. Double-sided DVD-RAMs are also problematic. You cannot physically label them and its difficult to handle them without making fingerprints. Either use a drive that handles caddies or use single-sided discs. The former option is of course the safest. I'm using a LG DVD-RAM drive with single-sided DVD-RAMs on my private computer (Windows) for archiving data (not bacula). Using UDF seemed the best option and I'm quite happy with it. No bad discs so far. Using DVD-RAM in combination with bacula is on my projects list. Is anybody actually doing this? Regards, Georg ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
