RAID1 synchronisation - howto OR not necessary?

Jan Catrysse j.catrysse at
Fri Nov 23 07:06:06 PST 2007

> -----Original Message-----
> From: Bill Moran [mailto:wmoran at] 
> Sent: Friday, November 23, 2007 4:01 PM
> To: Jan Catrysse
> Cc: freebsd-questions at
> Subject: Re: RAID1 synchronisation - howto OR not necessary?
> "Jan Catrysse" <j.catrysse at> wrote:
> > 
> > I didn't dig in GEOM because I wondered what happens if the primary 
> > disk fails when two disks are in a RAID1 config?
> There is no "primary" disk in a GEOM RAID1.  If the BIOS has 
> a concept of "primary" disk, then it's a BIOS issue and the 
> answer will depend on the BIOS.

I will take a look at GEOM. Hopefully I have some feedback on my new post,
to be sure I've changed synchronization by verification this time :-)


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