On Mon, Feb 21 at 22:55, Roberto Spadim wrote:
it can be used for badblock reallocation if harddisk have it a harddisk is near to NOR ssd with variable accesstime, if head is near sector to be read/write accesstime is small, if sector is far from head, access time increase (normaly <=1 disk revolution if head control system is good, for 7200rpm 1revolution is near to 8.33ms)
Hard disks do not expose their defect information/remappings. They present a defect-free logical region to the host. Optimizing for a few hundred thousand remapped sectors across the LBA range of ~6 billion LBAs on a 3TB drive isn't worth the effort or code complexity in most cases. I still don't see how TRIM helps a rotating drive. -- Eric D. Mudama edmudama@xxxxxxxxxxxxxxxx -- 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
