公开(公告)号：EP0008740B1

公开(公告)日：1982-02-17

申请号：EP79103066.1

申请日：1979-08-21

申请人： International Business Machines Corporation

发明人： Chang, Henry Kwan-Cheung ,  Hausen, Wolfgang, H.

IPC分类号： G11B21/10 ,  G06F11/00

CPC分类号： G11B5/59655

公开(公告)号：EP0008740A1

公开(公告)日：1980-03-19

申请号：EP79103066.1

申请日：1979-08-21

申请人： International Business Machines Corporation

发明人： Chang, Henry Kwan-Cheung ,  Hausen, Wolfgang, H.

IPC分类号： G11B21/10 ,  G06F11/00

CPC分类号： G11B5/59655

摘要： In apparatus and method for record reorientation following error detection in a data storage system (10), each data track (30) is subdivided into equal time-length recording cells which are sequentially numbered past an index point with the beginning of each field of each record coinciding with an initial cell for the field. Upon detection of a retriable error within a given field, the initial cell for the field is determined and stored, the system is disconnected from channel interface (20), and reorientation is attempted by advancing a transducer (26) addressing the track (30) past the index point to a location which is a selected distance upstream of the stored cell number. If a selected channel command is then received within a given time interval, the system is reconnected to the channel and reorientation is effected as the transducer (26) enters the field the initial cell of which was stored. If the selected channel command is received late, the subsystem waits one revolution of the track and then reorients without looking for further channel commands.

摘要翻译： 在用于记录重新定向的装置和方法按照在数据存储系统（10）的错误检测，每个数据磁道（30）是细分成相等的时间长度的记录单元被顺序编号的索引点的过去的与每个的每个字段的开始 纪录在田间初始细胞相吻合。 当检测到一个给定字段内的retriable错误的，该字段的初始细胞被确定性开采和存储，该系统被从信道接口（20）断开，并且重新定向由前进的换能器（26）寻址的轨道尝试（30） 过去的索引点的一个位置的所有这是一个选定的距离所存储的细胞数的上游。 如果所选择的信道的命令，然后在给定的时间间隔内接收到，则系统重新连接到信道和调整被实现为所述换能器（26）进入储存哪初始小区的领域。 如果接收到选择的信道命令晚，子系统等待轨道的一转，然后无需寻找另外的信道的命令重新定向。