TRIM isn´t a problem, it´s a solution to optimize dynamic allocation, and life time of devices (SSD or harddisk) i don´t see any problem to implement trim command on hard disks (not in linux, but at harddisk firmware level) hard disk have the same problem of ssd, allocation of badblocks, any harddisk could implement trim and use it to realloc badblocks... -- Roberto Spadim Spadim Technology / SPAEmpresarial -- 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