Re: large file system with RAIDframe

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Tue, Mar 16, 2010 at 07:10:50PM -0400, Steven Bellovin wrote:
> > I think you're hitting disklabel's on-disk format limitations (32bit 
> > integers).
> > gpt+wedge is the way to go for such large drives.
> 
> I mostly suspect you're right, except that the disk label displayed to me had 
> larger numbers than 2^31 -- I just couldn't enter them.
> 
> The question, though, is how wedges interact with RAID.  As best I can tell, 
> there are no wedges on RAID5 "volumes" -- how are partitions assigned, if not 
> via disklabel? 
> 
> # dkctl raid1 getwedgeinfo 
> dkctl: /dev/rraid1d: getwedgeinfo: Inappropriate ioctl for device

Works fine for me:
borneo:/home/bouyer#dkctl raid4 listwedges 
/dev/rraid4d: 1 wedge:
dk0: dk0, 7814057887 blocks at 64, type: ffs

NetBSD 5.0_STABLE as of a few days ago.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--