dmraid ISW maximum partition size?

Eric Schoeller eschoeller at users.sourceforge.net
Thu Jul 21 17:23:05 UTC 2011


Thanks Danny, that was indeed the problem.

For what it's worth, I had to use a last sector of 1953519871 instead of 
1953519879, or 8 sectors shy of the "end" of the disk.

--
Eric Schoeller

Danny wrote:
> On my ICH8R controller I have a 1.5TB partition and it works fine on
> the latest Ubuntu with stock dmraid packages.
> Is it possible that you are creating the 875GB partition larger than the device?
>
> Try creating a 874GB partition, its possible that you are being
> affected by the bug phillip was discussing on this list the other week
> where it actually calculates the device size in a funny way.
>
>
> On Thu, Jul 21, 2011 at 3:00 AM, Eric Schoeller
> <eschoeller at users.sourceforge.net> wrote:
>   
>> Hello list,
>>
>> I recently acquired a system with an Intel 82801 SATA RAID controller. I'm
>> using dmraid to manage an RAID1 1TB volume. I created 3 partitions on this
>> RAID1 array, one of them being 875GB. When the system boots only the first
>> two partitions appear in /dev/mapper/isw_xxx_p[1-2]. And, of course the
>> volume group and logical volumes in the 3rd partition are nowhere to be
>> found. After running 'partprobe' the 3rd partition appears, along with my
>> logical volumes. If I remove the large 3rd partition and replace it with
>> something in the neighborhood of a 300GB partition, it works just fine upon
>> boot. I haven't figured out how large I can go before I hit this problem.
>> This is a fully updated kubuntu 11.04 machine running 2.6.38-10-generic.
>>
>> dmraid version: 1.0.0.rc16
>> dmraid library version: 1.0.0.rc16
>> device-mapper version: 4.19.1
>>
>> I poked around on the interwebs but couldn't find any info. Any help is
>> greatly appreciated!
>>
>> --
>> Eric Schoeller
>> University of Colorado Boulder
>> Office of Information Technology
>>
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>>
>>     




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