cliftonr at lava.net
Wed Jan 5 17:15:00 UTC 2011
On Wed, Jan 05, 2011 at 11:36:59AM +0200, Daniel Braniss wrote:
> Hi Clifton,
> I was getting very frustrated yesterday, hence the cripted message, your
> response requieres some background :-)
> the box is a Sun Fire X2200, which has bays for 2 disks, (we have several of
> before the latest upgrade, the 2 disks were 'raided' via 'nVidia MediaShield'
> appeared as ar0, when I upgraded to 8.2, it disappeared, since I had in the
> kernel config file
> ATA_CAM. So I starded fiddling with gstripe, which 'recoverd' the data.
> Next, since the kernel boot kept complaining abouf GEOM errors, (and not
> wanting to
> mislead the operators) I cleaned up the data, and started from scratch.
> the machine boots diskless, but I like to keep a root bootable partition just
> in case.
> the process was in every case the same, first the stripe, then gpart the
Thanks, that makes it very clear why things are as they are. Good to know
that the booting issues are covered via diskless boot.
I had never thought about being able to recover a RAID stripe using
gstripe. That's a very interesting capability!
Assuming that FreeBSD considers partitioning a stripe to be valid in
principle - and you give reasons it should - then there may be a geom/driver
interaction bug to investigate here if the geom layer is refusing to write a
stripe-oriented partition to the raw drive.
Clifton Royston -- cliftonr at iandicomputing.com / cliftonr at lava.net
President - I and I Computing * http://www.iandicomputing.com/
Custom programming, network design, systems and network consulting services
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