clear metadata using dd?

Oliver Fromme olli at
Tue Jan 23 18:30:34 UTC 2007


I just noticed this message today, and there's one thing
I don't understand ...

Fernan Aguero wrote:
 > I'm trying to set up two disks to contain both gmirrored and
 > gstriped slices.
 > This is what I'm trying to achieve:
 > adxs1, swap
 > adxs2, gmirror
 > adxs3, gstripe

Can someone please explain why such a setup makes sense?

As far as I can tell, the purpose of gmirror is to provide
redundancy in the case of drive failure.  I.e. if one
drive fails, the system keeps running happily instead of

But if only part of the disk is mirrored, then the system
will still crash if one drive fails.  So what is the point
of using gmirror, if not on whole disks?

Just wondering.

Best regards

Oliver Fromme,  secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
Dienstleistungen mit Schwerpunkt FreeBSD:
Any opinions expressed in this message may be personal to the author
and may not necessarily reflect the opinions of secnetix in any way.

With Perl you can manipulate text, interact with programs, talk over
networks, drive Web pages, perform arbitrary precision arithmetic,
and write programs that look like Snoopy swearing.

More information about the freebsd-geom mailing list