Using GTP and glabel for ZFS arrays

[Dan Langille]

On 7/22/2010 4:11 AM, Dan Langille wrote:
> 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.
>
> And again with this output from one of the ZFS drives:
>
> # camcontrol identify ada0
> pass0: <Hitachi HDS722020ALA330 JKAOA28A> ATA-8 SATA 2.x device
> pass0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
>
> protocol ATA/ATAPI-8 SATA 2.x
> device model Hitachi HDS722020ALA330
> firmware revision JKAOA28A
> serial number JK1130YAH531ST
> WWN 5000cca221d068d5
> cylinders 16383
> heads 16
> sectors/track 63
> sector size logical 512, physical 512, offset 0
> LBA supported 268435455 sectors
> LBA48 supported 3907029168 sectors
> PIO supported PIO4
> DMA supported WDMA2 UDMA6
> media RPM 7200
>
> Feature Support Enable Value Vendor
> read ahead yes yes
> write cache yes yes
> flush cache yes yes
> overlap no
> Tagged Command Queuing (TCQ) no no
> Native Command Queuing (NCQ) yes 32 tags
> SMART yes yes
> microcode download yes yes
> security yes no
> power management yes yes
> advanced power management yes no 0/0x00
> automatic acoustic management yes no 254/0xFE 128/0x80
> media status notification no no
> power-up in Standby yes no
> write-read-verify no no 0/0x0
> unload no no
> free-fall no no
> data set management (TRIM) no

Does this support NCQ?

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