On 08/20/2012 12:28 AM, David Brown wrote:
It would be nice if LVM and md moved towards a bigger native alignment. 4K is good enough for hard disks, but for SSD's you want to align partitions on erase block boundaries. The standard used by modern fdisk and gparted (and tools from the-OS-that-must-not-be-named) is 1 MB - a bigger alignment than is necessary for current SSDs, but one that will be good enough for the foreseeable future.
This is one advantage with superblock 1.0 -- the alignment of the underlying device is preserved since the metadata is at the end.
-hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
