>>>>> "Andreas" == Andreas Dilger <adilger@xxxxxxx> writes: Andreas> I agree whole heartedly. We steer users very sharply away from Andreas> using partitions at all, because on h/w RAID devices the Andreas> 512-byte offset from fdisk completely kills RAID-5/6 Andreas> performance. I don't have a problem aligning to 1MB (taking alignment_offset into account) by default but there needs to be an easy override. There are RAID arrays that internally compensate for the legacy 63 sector offset and we'll cause misalignment if we start at 1MB on those. I'm heavily lobbying our storage partners to make sure they fill out the right SCSI bits if their LUNs are not naturally aligned. But there are obviously going to be legacy devices out there that will need manual alignment compensation. -- Martin K. Petersen Oracle Linux Engineering -- 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
