Re: Xen, VT, and RAID

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

On Sat, 23 Dec 2006 16:40:20 +0100
Geert Hendrickx <ghen%NetBSD.org@localhost> wrote:

> On Sat, Dec 23, 2006 at 10:12:19AM -0500, Steven M. Bellovin wrote:
> > Hmm -- ok.  There's a fair chance I'm going to stick with the fdisk
> > partition anyway, to let me boot FreeBSD in native mode, but I'll
> > see. (FreeBSD has better IPMI support; if I need to get at it at
> > that level, I'd need FreeBSD.  Hmm -- I wonder.  I can assign the
> > PCI ports to the FreeBSD domU; maybe that would work.  Hmm...  (The
> > right solution is for me to port the FreeBSD driver to NetBSD, but
> > I'm not sure I'll have time to do that before putting the machine
> > into production.))
> 
> FreeBSD's driver is like Linux's OpenIPMI, right? (i.e. you can run
> "ipmitool -I open" and talk IPMI with the device locally?)

That's right.  The man page describes it as "compatible" but that "not
all features ... are supported".  I don't know what's missing.
> 
> OpenBSD has an IPMI driver as well, which supports only the hardware
> sensors though (readable via the hw.sensors sysctl subtree), not the
> remote console etc, but it may be an interesting starting point.
> 
> See http://marc.theaimsgroup.com/?l=openbsd-misc&m=112993650617151&w=2

There's NetBSD support of sensor reading (by Manuel), but I haven't
played with it, either.



                --Steve Bellovin, http://www.cs.columbia.edu/~smb