dmraid ISW maximum partition size?

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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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