Hi everyone: We are experiencing problems with software raid0, with very large disk arrays. We are using two 3ware disk array controllers, each of them is connected 8 750GB harddrives. And we build a software raid0 on top of that. The total capacity is 5.5TB+5.5TB=11TB We use jfs as the file-system, we have a test application that write data continuously to the disks. After writing 52 10GB files, jfs crashed. And we are not able to recover it, fsck doesn't recognise it anymore. We then tried xfs, same application, lasted a little longer, but gives kernel crash later. We then reconfigured the hardware array, this time we configured two disk array from each controller, than we have 4 disk arrays, each of them have 4 750GB harddrives. Than build a new software raid0 on top of that. Total capacity is still the same, but 2.75T+2.75T+2.75T+2.75T=11T. This time we managed to fill the whole 11T data without problem, we are still doing validation on all 11TB of data written to the disks. It happened on 2.6.20 and 2.6.13. So I think the problem is in the way on software raid handling very large disk, maybe a integer overflow or something. I've searched on the web, only find another guy complaining the same thing on the xfs mailing list. Anybody have a clue? Jeff - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
