[no subject]

The saga continues,
Jason


On Mar 1, 2004, at 9:38 AM, Jason Vinson wrote:

> Nevermind... badblocks is a command (duh!)
>
>
> On Mar 1, 2004, at 9:31 AM, Jason Vinson wrote:
>
>> Hi Danny,
>>
>> hdparm did report dma on, so i used d0 to turn it off on both drives, 
>> but it immediately hangs upon the mkraid if i do this, so i'm 
>> thinking that's not a good idea  ;)
>>
>> I am going to show my greenness here, but how do i run bad blocks on 
>> the drives?  Are you recommending using dd to write zero's to the 
>> platters?
>>
>> Jason
>>
>>
>> On Mar 1, 2004, at 7:24 AM, Danny Cox wrote:
>>
>>> Hi, Jason!
>>>
>>> On Sun, 2004-02-29 at 20:54, Jason Vinson wrote:
>>>> I looked in the BIOS and I don't see a setting for toggling DMA.
>>>>
>>>> But here's what I see from dmesg:
>>>>
>>>> (this is my onboard ide controller)
>>>> ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:DMA
>>>> ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:DMA
>>>>
>>>> (and these are the Promise IDE channels)
>>>> ide2: BM-DMA at 0xdf50-0xdf57, BIOS settings: hde:pio, hdf:pio
>>>> ide3: BM-DMA at 0xdf58-0xdf5f, BIOS settings: hdg:pio, hdh:pio
>>>>
>>>> hde and hdg are my potential RAID devices, and they are set to pio. 
>>>>  So
>>>> is pio conflicting with DMA somehow, or should this not be affected 
>>>> by
>>>> DMA at all? And isn't there a way to turn off DMA via hdparm, or 
>>>> will
>>>> that not work here?
>>>
>>> 	That's just the kernel reporting how the BIOS was set up.  There are
>>> probably messages just after that which show what else the driver set
>>> up.  Use "hdparm /dev/hde" and see if DMA is 0 or 1.  If necessary,
>>> sometime during bootup, add "hdparm -d1 /dev/hd{e,g}" to force DMA 
>>> on.
>>>
>>> 	But your previous post showed the drives complaining about errors.  
>>> On
>>> second glance, I see that 'dma_intr' is being called, confirming that
>>> DMA is being used on hde at least.  The UncorrectableError is the 
>>> main
>>> culprit here.  Try running badblocks on the whole drive (smoke 'em 
>>> if ya
>>> got 'em, it'll take a wee bit ;-), and see what it says.
>>>
>>> 	HTH!
>>>
>>> -- 
>>> kernel, n.: A part of an operating system that preserves the
>>> medieval traditions of sorcery and black art.
>>>
>>> Danny
>>>
>>> _______________________________________________
>>> Ale mailing list
>>> Ale at ale.org
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</pre>
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<li><strong><a name="00002" href="msg00002.html">[ale] Software RAID Problems</a></strong>
<ul><li><em>From:</em> danscox at mindspring.com (Danny Cox)</li></ul></li>
<li><strong><a name="00004" href="msg00004.html">[ale] Software RAID Problems</a></strong>
<ul><li><em>From:</em> vinson.lists at charter.net (Jason Vinson)</li></ul></li>
<li><strong><a name="00006" href="msg00006.html">[ale] Software RAID Problems</a></strong>
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