Problem with multiple scsi adapters and drive assignments
pcloches at gmail.com
Tue Mar 18 16:09:13 PDT 2008
This is exactly what labeling your disks solves.
Please see info on 'tunefs' and 'glabel' which provide labels to
devices. Basically, when you insert a device not only does it get its
scan-order-based /dev/___, it also gets a named entry in either
/dev/ufs/ or /dev/label (tunefs/geom).
You then use the label to mount the drive.
On 18/03/2008, John A. <johna9999 at gmail.com> wrote:
> I've searched all over (not totally exhaustive, but close) and can't find an
> answer that I thought would have come up before. Basically, I need to
> change the order that the kernel assigns drive names on bootup.
> It all started out with an old Intel server board with NCR/Symbios scsi
> builton. I added a QLogic QLA2100 fibre controller and everything was fine
> except that it was a little slow and couldn't hold enough ram. I took
> another (newer) Intel server board and put it in the case. This board has
> an Adaptec AIC7896 builtin. My custom kernel didn't have the aic driver so
> I took the opportunity to upgrade to 7.0 and built a new kernel. Everything
> was fine until I turned on the external fibre chassis and found that my da0
> became da7. The board is in a rack-mount case so I cant put the QLA into a
> different slot and the bios doesn't have any way to change irq settings on
> the pci slots.
> I my mind, the logical answer is to tell FBSD to scan ahc0 before isp0.
> Through all my searching through docs and the mailing list archives, I can't
> find any mention of how to do this. I did find one mention of turning off
> the bios on the offending scsi card (it was a system with 2 Adaptecs). Been
> there, tried that, didn't work. Feel free to slap my face and call me
> stupid as long as you point my to the proper info if I somehow missed it.
> Here are the relevant parts of dmesg if that helps (I didn't include the
> drives themselves since I can't get it boot with the external chassis turned
> FreeBSD 7.0-RELEASE #1: Mon Mar 17 14:43:04 EDT 2008
> john at media:/usr/obj/usr/src/sys/MYKERN
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Intel Pentium III (596.92-MHz 686-class CPU)
> Origin = "GenuineIntel" Id = 0x681 Stepping = 1
> real memory = 2139029504 (2039 MB)
> avail memory = 2087882752 (1991 MB)
> ACPI APIC Table: <Intel N440BX >
> ioapic0 <Version 1.1> irqs 0-23 on motherboard
> kbd1 at kbdmux0
> acpi0: <PTLTD RSDT> on motherboard
> acpi0: [ITHREAD]
> acpi0: Power Button (fixed)
> Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
> acpi_timer0: <24-bit timer at 3.579545MHz> port 0xc08-0xc0b on acpi0
> cpu0: <ACPI CPU> on acpi0
> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
> pci0: <ACPI PCI bus> on pcib0
> agp0: <Intel 82443GX host to PCI bridge> on hostb0
> pcib1: <PCI-PCI bridge> at device 1.0 on pci0
> pci1: <PCI bus> on pcib1
> pcib2: <PCI-PCI bridge> at device 15.0 on pci1
> pci2: <PCI bus> on pcib2
> isp0: <Qlogic ISP 2100 PCI FC-AL Adapter> port 0x2000-0x20ff mem
> 0xf4500000-0xf4500fff irq 19 at device 9.0 on pci0
> firmware_get: failed to load firmware image isp_2100
> isp0: [ITHREAD]
> isp0: Board Type 2100, Chip Revision 0x3, resident F/W Revision 1.15.21
> pci0: <simple comms> at device 11.0 (no driver attached)
> ahc0: <Adaptec aic7896/97 Ultra2 SCSI adapter> port 0x2400-0x24ff mem
> 0xf4501000-0xf4501fff irq 19 at device 12.0 on pci0
> ahc0: [ITHREAD]
> aic7896/97: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs
> ahc1: <Adaptec aic7896/97 Ultra2 SCSI adapter> port 0x2800-0x28ff mem
> 0xf4502000-0xf4502fff irq 19 at device 12.1 on pci0
> ahc1: [ITHREAD]
> aic7896/97: Ultra2 Wide Channel B, SCSI Id=15, 32/253 SCBs
> Thanks in advance for your help, the archives of this list have been very
> helpful over the past 5 years.
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