Detecting and repairing method for respond loss of Seagate hard disk caused by data area sequential access
A repair method and data area technology, applied in the detection of faulty computer hardware, etc., can solve problems such as hard disk loss of response, frequent manual processing, and inability to handle
Inactive Publication Date: 2016-01-20
XLY SALVATIONDATA TECHNOLOGY INC
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[0004] Aiming at the deficiencies of the prior art, the present invention provides a detection and repair method for the unresponsiveness of the Seagate hard disk caused by continuous access to the data area, which can effectively solve the problem that the prior art cannot detect that the hard disk has lost its response, resulting in the need for frequent manual work to solve this problem handle can't even handle this
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[0016] 001-By checking whether the status registers DRD, DWF, DSC, ERR are 1, when the continuous access of the data area causes the Seagate hard disk to lose response, because the BSY bit will not be set to '1', it is still in the ready state, so that the host cannot monitor the hard disk If it has lost response, it will continue to send commands to read data to the hard disk. At this time, the hard disk will return meaningless empty data. Therefore, verify the returned data. If the verification finds that the entire sector is 4040 (40 means unreadable), it means that the hard disk is unresponsive due to continuous access to the data area.
[0017] 002-Send a reset command to the hard disk. (this step is prior art)
[0018] 101-According to the ATA protocol, set the chip select 0 signal to low level, that is, set CS0 to 0, and at this time, the main status register can be accessed. The main status register is 1 byte, 8 bits in total, reflecting the status of 8 different par...
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The invention discloses a detecting and repairing method for respond loss of a Seagate hard disk caused by data area sequential access, and belongs to the field of data restoration. The detecting and repairing method comprises the following steps: S1, inspecting a state register, and if DRD, DWF, DSC and ERR are 1 and BSY bit is 0, verifying returned data; if the whole section is verified to be a string of meaningless null data, showing that the problem is the respond loss of the Seagate hard disk caused by data area sequential access; S2, sending a reset instruction to the hard disc. The detecting and repairing method provided by the invention has the beneficial effects that through the adoption of the method, whether the hard disc is in the state that the Seagate hard disk loses respond due to data area sequential access can be quickly detected, and corresponding repair can be performed without tedious manual handling.
Description
technical field [0001] The invention belongs to the field of data recovery, and in particular relates to a detection and repair method for a Seagate hard disk losing response caused by continuous access to a data area. Background technique [0002] According to the ATA protocol, under normal circumstances, when the hard disk loses response, the status register BSY position of the hard disk is "1", that is, the indicator light is on, to tell the host that the hard disk cannot continue to accept commands, but when the continuous access to the data area causes the Seagate hard disk to lose response, Because the BSY bit will not be set to '1', it is still in the ready state, so the host cannot detect that the hard disk has lost its response, and will continue to send commands to read data from the hard disk. At this time, the hard disk returns meaningless empty data. [0003] In the prior art, when the hard disk is busy, a soft reset, hard reset, or even power reset command is i...
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IPC IPC(8): G06F11/22
Inventor 梁效宁董超樊潮波
Owner XLY SALVATIONDATA TECHNOLOGY INC