On 2017-08-24 09:24, Josh Fisher wrote:
As for writing the same job to two disks simultaneously, I don't think that will be very easy to accomplish. It would, I believe, require a new Device type driver in Bacula that atomically reserves two Device resources at a time. Why not use Copy jobs? Or pair the removable drives into RAID1 arrays?
Amanda had RAIT option since forever: you just tell it to use 2 tape devices.
Copy jobs aren't quite for that, and with, say, 2U 12-3.5" bay chassis I'm looking at a spool ssd, 1 "copy" disk, and 10 "magazines" -- or 5 raid=1 "magazines". It's certainly doable but I'll have to swap the disks twice as often, that is less than perfect. I might actually do it in the next iteration, but the truth is our hdds don't fail that often so at this point it ain't really broken, just suboptimal.
Someday I'll read up on fuse, too, I wonder how much trickery one can program into that.
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