公开(公告)号：US07184241B1

公开(公告)日：2007-02-27

申请号：US11157587

申请日：2005-06-21

申请人： Michael Mallary ,  Yan Wu ,  John VanLaanen ,  Bruce Buch ,  Jeffrey V DeRosa

发明人： Michael Mallary ,  Yan Wu ,  John VanLaanen ,  Bruce Buch ,  Jeffrey V DeRosa

IPC分类号： G11B5/596 ,  G11B5/02 ,  G11B15/18

CPC分类号： G11B5/024 ,  G11B5/40

摘要： A disk drive includes a rotatable data storage disk, a transducer, an actuator, and a controller. The transducer is configured to read and write data on the disk. The actuator is configured to position the transducer relative to defined portions of the disk. The controller is configured to write a predetermined magnetic polarity pattern on a buffer portion of the disk to erase data thereon. The controller also determines whether the disk drive has reached a threshold operating temperature, and to selectively direct data from a host device, which is addressed for an associated original block address on the disk, to be written to the buffer portion of the disk when the disk drive has not reached the threshold operating temperature. The controller later copies the data from the buffer portion of the disk to the original block address on the disk and then erases the data from the buffer portion of the disk.

摘要翻译： 磁盘驱动器包括可旋转数据存储盘，换能器，致动器和控制器。 传感器配置为在磁盘上读取和写入数据。 致动器被配置成相对于盘的限定部分定位换能器。 控制器被配置为在盘的缓冲部分上写入预定的磁极性图案以在其上擦除数据。 控制器还确定磁盘驱动器是否已经达到阈值工作温度，并选择性地将来自主机设备的数据（其被寻址用于磁盘上相关联的原始块地址）写入到盘的缓冲部分中 磁盘驱动器尚未达到阈值工作温度。 控制器稍后将数据从磁盘的缓冲部分复制到磁盘上的原始块地址，然后从磁盘的缓冲区擦除数据。