On Wed, Feb 25, 2009 at 06:27:18PM -0500, Martin K. Petersen wrote: > > Because of 63-sector legacy problems a bunch of ATA vendors will > initially ship 512/4096 drives that are not naturally aligned. > I.e. logical sector 63 will be aligned on a 4KB hardware sector > boundary to overcome the misaligned default partitioning. > Are we *sure* that this is what they plan to be doing? Is there a way we can query the hardware to find out for sure what drives are doing what? I'll note that Vista starts all new partitions at the 1MB boundary, so its filesystems will be naturally aligned. As I mentioned in a recent blog entry: http://thunk.org/tytso/blog/2009/02/20/aligning-filesystems-to-an-ssds-erase-block-size/ ... this is one place Vista is ahead of Linux. So while Microsoft's market share has slipped, 85% of all new x86 machines still have some variant of Redmond-spawn installed on them, and with the advent of Windows 7 coming soon, and Microsoft making it harder and harder for vendors to ship machines upgraded to Windows XP, it seems... surprising... that new disks meant for Windows Vista or Windows 7 systems would be misaligned to start at logical sector 63. - Ted -- 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
