I've been attempting to create a large raid 5 device using the linux 2.6.1 kernel, with the Large Block Device configured on. I have in the system 16 250G disks. I built an array with mdadm -C -n 15 -x 1 /dev/md2 /dev/sd[a-p] The resync/recovery seemed to be going fine, but at some point i started seeing: kernel: compute_blocknr: map not correct kernel: compute_blocknr: map not correct thousands of time in my logs. I had hoped this message was not bad, so i tried a mkfs on the system, the mkfs just seemed to hang(no output at all), i left it for 15 hours or so but it never output anything. I rebooted and restarted the array, and am running a simple dd of the entire block now, but it will take sometime. Has anyone else made an array this large? and does anybody have any pointers on where i can start looking at code to fix this? Evan -- ------------------------- Evan Felix Administrator of Supercomputer #5 in Top 500, Nov 2003 Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Operated for the U.S. DOE by Battelle - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
