rot_rate         1026 scsi/sd.c      	lp->d_rpm = sd->params.rot_rate;
rot_rate         1437 scsi/sd.c      		dp->rot_rate = (rpm == 0) ? 3600 : rpm;
rot_rate           77 scsi/sdvar.h   		u_long	rot_rate;	/* rotational rate, in RPM */