On 1/31/20 10:36 AM, Josh Fisher wrote:
> 
> Actually, it is pretty tricky from user space and why the need for the
> md kernel module in Linux. For true RAIT, like for RAID, it should be a
> device driver.

Yes, iff you need true RAIT. If all you want is to write to 2 file
descriptors instead of one, I'll need to dig up my Stevens and do some
light reading to refresh my memory and see if a simple dup() will
suffice. And no, that's not the same as a copy job: one is parallel, the
other: serial.

I expect the fun bit is fitting it into bacula's universe of tapes and
volumes and catalogs. Like if you want to restore, how do you chose the
copy to restore from.

-- 
Dimitri Maziuk
Programmer/sysadmin
BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu

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