>>>>> "hpa" == H Peter Anvin <hpa@xxxxxxxxx> writes: hpa> On the flipside, though, there really is very little net benefit to hpa> 4K as opposed to 512 byte logical sectors: the additional protocol hpa> overhead is relatively minimal, and as long as writes are aligned hpa> full blocks, there shouldn't be any additional overhead on either hpa> the OS or the drive side. On the plus side, you get full hpa> compatibility with the existing software stack. The equation hpa> really seems rather simple. 4KB sectors are not a win for anybody except the drive vendors. There is a push in the industry right now to keep the 512-byte logical blocks forever. The first step would be to report misaligned accesses or accesses that are not a multiple of the physical block size. Second step would be to eventually reject any write that's not a properly aligned multiple of the physical block size. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
