Using GTP and glabel for ZFS arrays

[Dan Langille]

On 7/22/2010 4:03 AM, Charles Sprickman wrote:
> On Thu, 22 Jul 2010, Dan Langille wrote:
>
>> On 7/22/2010 3:30 AM, Charles Sprickman wrote:
>>> On Thu, 22 Jul 2010, Dan Langille wrote:
>>>
>>>> On 7/22/2010 2:59 AM, Andrey V. Elsukov wrote:
>>>>> On 22.07.2010 10:32, Dan Langille wrote:
>>>>>> I'm not sure of the criteria, but this is what I'm running:
>>>>>>
>>>>>> atapci0:<SiI 3124 SATA300 controller> port 0xdc00-0xdc0f mem
>>>>>> 0xfbeffc00-0xfbeffc7f,0xfbef0000-0xfbef7fff irq 17 at device 4.0 on
>>>>>> pci7
>>>>>>
>>>>>> atapci1:<SiI 3124 SATA300 controller> port 0xac00-0xac0f mem
>>>>>> 0xfbbffc00-0xfbbffc7f,0xfbbf0000-0xfbbf7fff irq 19 at device 4.0 on
>>>>>> pci3
>>>>>>
>>>>>> I added ahci_load="YES" to loader.conf and rebooted. Now I see:
>>>>>
>>>>> You can add siis_load="YES" to loader.conf for SiI 3124.
>>>>
>>>> Ahh, thank you.
>>>>
>>>> I'm afraid to do that now, before I label my ZFS drives for fear that
>>>> the ZFS array will be messed up. But I do plan to do that for the
>>>> system after my plan is implemented. Thank you. :)
>>>
>>> You may even get hotplug support if you're lucky. :)
>>>
>>> I just built a box and gave it a spin with the "old" ata stuff and then
>>> with the "new" (AHCI) stuff. It does perform a bit better and my BIOS
>>> claims it supports hotplug with ahci enabled as well... Still have to
>>> test that.
>>
>> Well, I don't have anything to support hotplug. All my stuff is internal.
>>
>> http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs430.ash1/23778_106837706002537_100000289239443_171753_3508473_n.jpg
>>
>
> The frankenbox I'm testing on is a retrofitted 1U (it had a scsi
> backplane, now has none).
>
> I am not certain, but I think with 8.1 (which it's running) and all the
> cam integration stuff, hotplug is possible. Is a special backplane
> required? I seriously don't know... I'm going to give it a shot though.
>
> Oh, you also might get NCQ. Try:
>
> [root at h21 /tmp]# camcontrol tags ada0
> (pass0:ahcich0:0:0:0): device openings: 32

# camcontrol tags ada0
(pass0:siisch2:0:0:0): device openings: 31

resending with this:

ada{0..4} give the above.

# camcontrol tags ada5
(pass5:ahcich0:0:0:0): device openings: 32

That's part of the gmirror array for the OS, along with ad6 which has 
similar output.

-- 
Dan Langille - http://langille.org/