发明名称 |
Data read apparatus and data read method |
摘要 |
To decrease the number of read errors of a storage device due to bus noise when data is transferred between a host apparatus and the storage device. When a read error due to bus noise is detected, transfer of data to a host apparatus is temporarily stopped when executing rereading to eliminate bus noise which is a cause of the read error. In a preferred embodiment bus noise errors are distinguished by looking at the frequency of errors and the retry count for the previous error. The error is detected as a bus noise error if the frequency is above a threshold and the retry count is below a threshold. Data transfer can be restarted when a buffer becomes full or when the reading of the data is successfully completed. |
申请公布号 |
US6088818(A) |
申请公布日期 |
2000.07.11 |
申请号 |
US19980009143 |
申请日期 |
1998.01.20 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ANDOH, HARUO;KOBAYASHI, KEIJI;TSUCHIMOTO, KAZUNARI |
分类号 |
G06F11/00;G11B20/18;(IPC1-7):G06F11/00 |
主分类号 |
G06F11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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