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Re: [Bacula-users] DVD+RW vs DVD-RAM for incremental daily backups
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From: Arno L. <al...@it...> - 2007-01-27 00:10:06
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Hello. On 1/27/2007 12:23 AM, cy tune wrote: > I have a question about DVD+RW vs. DVD-RAM. I read through the archives > but I didn't see anything comparing DVD+RW vs DVD-RAM. Here's my plan: > > a) DVD+RW or DVD-RAM for incremental daily backups. I am planning on at > least 7 disks so I can extend the lifetime of the media. DVD-RAM would > last longer and I like the hardware verification. > > b) DVD+R for archiving weekly and full backups. Probably dual layer for > full backups and single layer for weekly. I don't think I'll generate > much more data than that. One byte more than what you can put onto a disk is enough :-) > 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. > 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 prefer tape or, if offsite storage and the ability to endlessly add storage count less than speed (and price) disk. > Right now > I'm leaning towards DVD+RW and DVD+R because I know it's supported > according to the bacula manual. Yes, it should work, but I must admit I haven't tried it seriously since the first 1.39 versions. > Has anyone used DVD-RAM DVD-RAM should usually be used just like a removable disk, i.e. insert disk, create filesystem, use, unmount. This is quite different to what Bacula does with DVDs. > 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. > I'm only concerned with backing up a single system (linux 2.6.18) but > will soon be interested in at least 1 more. > > Thanks. > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > 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 > Bac...@li... > https://lists.sourceforge.net/lists/listinfo/bacula-users -- IT-Service Lehmann al...@it... Arno Lehmann http://www.its-lehmann.de |