Re: DVD Arrays (was Re: Is anyone using a dvd drive yet?)
On Wed, 8 Sep 2004, Frank Smith wrote:
> If your needs can be handled by a few DVDs, the easiest way to implement
> it might be to use Amanda's file driver and then burn that to DVD.
What about cdrw-taper?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [EMAIL PROTECTED]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
Re: DVD Arrays (was Re: Is anyone using a dvd drive yet?)
Good points. For small backups, I think that removable firewire / USB 2.0 drives would be a more economical and convenient option, using FILE-DRIVER to write vtapes onto the removable drives. I still think DVDs are more suited to "archival" backups of a few GB where you plan to store and delete the data. Lately, I keep getting the feeling like people want a $50k backup solution but only want to pay $3k to get it and then complain when it doesn't live up to their expectations. Frank Smith wrote: At one time I thought DVDs would be a good backup media, but I have since changed my mind. The main reason is capacity (or lack of it). Unless you are backing up small amounts of data, it would take stacks of DVDs to perform your backups. Perhaps now that dual-layer burners and the new Blu-ray format are emerging the pain threshold is rising, but currently I cant see using 25 DVDs instead of a single 100 GB tape (and those aren't even the largest tapes commonly available). If your needs can be handled by a few DVDs, the easiest way to implement it might be to use Amanda's file driver and then burn that to DVD. Frank
Re: DVD Arrays (was Re: Is anyone using a dvd drive yet?)
--On Wednesday, September 08, 2004 16:15:06 -0600 Justin Gombos <[EMAIL PROTECTED]> wrote: > * Christoph Scheeder <[EMAIL PROTECTED]> [2004-06-24 18:03]: >> Hi, >> i'm using a dvd+-rw device for archiving my vdr-recordings. >> you don't need to by cdrecord-DVDpro, there is a tool called >> growisofs out there. >> It handles dvd+ and dvd- correct, it is free, and AFAIK >> it handles the various versions of buffer-underrunprotection >> automagically. > > Since DVD burners are so cheap now, and still dropping, I would love > to build a DVD array for backups. Having four or five dvd burners > (possibly mixed with CD burners) in a tower doing unattended backups > would be ideal. Is this feasible using amanda and other current tools > (like growisofs), or does this capability still need to be developed? > > I asked the same question a while ago for CDRs, and if I remember > correctly, the answer was no. At the time, Amanda was really designed > for tapes, and little headway was made with optical media. It seemed > that using optical media was unorthodox, and required some improvising > (though doable); and arrays were out of the question. > > So I'd like to get an idea for the demand of this sort of capability, > and whether any Amanda developers are even considering support for > optical arrays. At one time I thought DVDs would be a good backup media, but I have since changed my mind. The main reason is capacity (or lack of it). Unless you are backing up small amounts of data, it would take stacks of DVDs to perform your backups. Perhaps now that dual-layer burners and the new Blu-ray format are emerging the pain threshold is rising, but currently I cant see using 25 DVDs instead of a single 100 GB tape (and those aren't even the largest tapes commonly available). If your needs can be handled by a few DVDs, the easiest way to implement it might be to use Amanda's file driver and then burn that to DVD. Frank -- Frank Smith [EMAIL PROTECTED] Sr. Systems Administrator Voice: 512-374-4673 Hoover's Online Fax: 512-374-4501
DVD Arrays (was Re: Is anyone using a dvd drive yet?)
* Christoph Scheeder <[EMAIL PROTECTED]> [2004-06-24 18:03]: > Hi, > i'm using a dvd+-rw device for archiving my vdr-recordings. > you don't need to by cdrecord-DVDpro, there is a tool called > growisofs out there. > It handles dvd+ and dvd- correct, it is free, and AFAIK > it handles the various versions of buffer-underrunprotection > automagically. Since DVD burners are so cheap now, and still dropping, I would love to build a DVD array for backups. Having four or five dvd burners (possibly mixed with CD burners) in a tower doing unattended backups would be ideal. Is this feasible using amanda and other current tools (like growisofs), or does this capability still need to be developed? I asked the same question a while ago for CDRs, and if I remember correctly, the answer was no. At the time, Amanda was really designed for tapes, and little headway was made with optical media. It seemed that using optical media was unorthodox, and required some improvising (though doable); and arrays were out of the question. So I'd like to get an idea for the demand of this sort of capability, and whether any Amanda developers are even considering support for optical arrays.
