AHCI and correct drive geometry?

[Josef Karthauser]

> -----Original Message-----
> From: Jeremy Chadwick [mailto:koitsu at freebsd.org]
> Sent: 16 April 2008 09:15
> To: Josef Karthauser
> Cc: stable at freebsd.org
> Subject: Re: AHCI and correct drive geometry?
> 
> On Wed, Apr 16, 2008 at 08:12:26AM +0100, Josef Karthauser wrote:
> > So what's the word on AHCI and bios drive geometry? I'm having a
real
> > pain of a time trying to get some 750gb sata drives running on my
> > FreeBSD7 box in AHCI mode. It doesn't seem to matter what disk
> geometry
> > I suggest to sysinstall, something complains of an invalid disk upon
> > booting it.
> >
> > Actually, in AHCI mode the bios screen doesn't report any
information
> on
> > drive geometry, so all bets appear to be off in giving sysinstall
the
> > correct figures.
> 
> I have no problems using AHCI on our Supermicro SuperServer 5015M-T+
> systems, which are Intel ICH7-based, and with disks ranging up to
> 500GB.
> There are no disk geometry issues I encounter.
> 
> Here's an example of one of the heavily-loaded boxes.  The boot/OS
disk
> is ad4.
> 
> atapci1: <Intel AHCI controller> port 0x30e8-0x30ef,0x30dc-
> 0x30df,0x30e0-0x30e7,0x30d8-0x30db,0x30b0-0x30bf mem 0xe8600400-
> 0xe86007ff irq 19 at device 31.2 on pci0
> atapci1: [ITHREAD]
> atapci1: AHCI Version 01.10 controller with 4 ports detected
> ata2: <ATA channel 0> on atapci1
> ata2: [ITHREAD]
> ata3: <ATA channel 1> on atapci1
> ata3: [ITHREAD]
> ata4: <ATA channel 2> on atapci1
> ata4: [ITHREAD]
> ata5: <ATA channel 3> on atapci1
> ata5: [ITHREAD]
> 
> ad4: 190782MB <WDC WD2000JD-00HBB0 08.02D08> at ata2-master SATA150
> ad6: 476940MB <WDC WD5000AAKS-00YGA0 12.01C02> at ata3-master SATA300
> ad8: 476940MB <WDC WD5000AAKS-00TMA0 12.01C01> at ata4-master SATA300
> ad10: 476940MB <WDC WD5000AAKS-00TMA0 12.01C01> at ata5-master SATA300

It looks like the problem was that there was no active partition set!

Joe