On 11/25/13 04:07, obsd, cgi wrote:
> according to:
> http://www.openbsd.org/cgi-bin/man.cgi?query=bioctl
> 
> dd if=/dev/zero of=/dev/rsd3c bs=1m count=1
> 
> is needed. but Why?
> 

I've actually found it more useful to zero the raw RAID partition than
the "assembled" softraid "disk".  This takes care of the case where
previous softraid disks had been created, which can be quite frustrating
when they pop up again unexpectedly.

That's from experience...haven't been able to convince the softraid
developers, so I suspect there's something to *also* zeroing the
assembled disk.

It takes but a couple seconds to do.  Just do it.

Nick.

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