Re: CCD Mirroring HOWTO

On Fri, Nov 25, 2005 at 04:50:34PM +0100, mickey wrote: > default 'c' type is unused. > at least on default systems... On REAL disks, yes. On ccd disks, it seems to be different. Or maybe ccdconfig screws it up. > > 2. The OpenBSD slices of my disks start at sector 24659775. This is also > > whe

Re: CCD Mirroring HOWTO

On Fri, Nov 25, 2005 at 04:02:03PM +0100, Robbert Haarman wrote: > On Fri, Nov 25, 2005 at 03:03:22PM +0100, mickey wrote: > > On Fri, Nov 25, 2005 at 02:57:22PM +0100, Robbert Haarman wrote: > > > > > > I'm not sure what you mean here. What I meant is that ccdconfig will > > > automatically crea

Re: CCD Mirroring HOWTO

On Fri, Nov 25, 2005 at 02:43:31PM +0100, mickey wrote: > On Fri, Nov 25, 2005 at 02:41:47PM +0100, Robbert Haarman wrote: > > > > This still leaves the issue of ccdconfig setting up the c partition as > > type 4.2BSD. If this can thrash the disklabel, that sounds like a > > serious bug. Is that go

Re: CCD Mirroring HOWTO

On Fri, Nov 25, 2005 at 02:41:47PM +0100, Robbert Haarman wrote: > On Fri, Nov 25, 2005 at 02:26:08PM +0100, mickey wrote: > > On Fri, Nov 25, 2005 at 02:14:35PM +0100, Robbert Haarman wrote: > > by using 'c' partition one may endup trashing real disk's label. > > DO NOT USE 'c' PARTITION. > > Ok,

Re: CCD Mirroring HOWTO

On Fri, Nov 25, 2005 at 02:26:08PM +0100, mickey wrote: > On Fri, Nov 25, 2005 at 02:14:35PM +0100, Robbert Haarman wrote: > by using 'c' partition one may endup trashing real disk's label. > DO NOT USE 'c' PARTITION. Ok, I'll change the HOWTO and add a FAQ entry ASAP. Apologies for not believing

Re: CCD Mirroring HOWTO

> >Of course, if somebody who > >actually knew the implementation details about ccd could weigh in, > >that would resolve the issue. > > they just did. > Ok, thanks for pointing that out. I apologize for my uninformed comments, especially

Re: CCD Mirroring HOWTO

--On 25 November 2005 14:14 +0100, Robbert Haarman wrote: Of course, if somebody who actually knew the implementation details about ccd could weigh in, that would resolve the issue. they just did.

Re: CCD Mirroring HOWTO

On Fri, Nov 25, 2005 at 02:14:35PM +0100, Robbert Haarman wrote: > > > http://inglorion.net/documents/tutorials/ccd/. > > > > labeling section is wrong. > > one MUST never use 'c' partition. > > one MUST always make an 'a' (for example) > > to skip first cylinder (at least). > > That's true for r

Re: CCD Mirroring HOWTO

> > http://inglorion.net/documents/tutorials/ccd/. > > labeling section is wrong. > one MUST never use 'c' partition. > one MUST always make an 'a' (for example) > to skip first cylinder (at least). That's true for real disks, but it doesn't seem to be true for ccd devices. If it were true, ccdco

Re: CCD Mirroring HOWTO

On Thu, Nov 24, 2005 at 05:14:16PM +0100, Robbert Haarman wrote: > For those who are interested, I've uploaded a tutorial on setting up > mirroring using ccd(4) to http://inglorion.net/documents/tutorials/ccd/. labeling section is wrong. one MUST never use 'c' partition. one MUST always make an '

Re: CCD Mirroring HOWTO

Hi In openbsd-misc you mentioned this web-page: http://inglorion.net/documents/tutorials/ccd/ I have a few questions/comments about the above and about ccd in OpenBSD in general. 1) You talk about "RAID only works with whole disks"? I'm curious which RAID implementation you're referring to..

Re: CCD Mirroring HOWTO

> http://inglorion.net/documents/tutorials/ccd/ > > I have a few questions/comments about the above and about ccd > in OpenBSD in general. > > 1) You talk about "RAID only works with whole disks"? I'm curious > which RAID implementation you're referring to... it seems like you > might be talk