In Barracuda 7200.9 and 7200.10 HDD, there is a typical malfunction, in which the HDD will not be detected and data area is not accessed. Also, you will get the following message in cmd mode:
Interface task reset
1024k x 16 SDRAM
TONKA40 – 1_Disk M-31 11-15-05 15:49
Buzz – Head Mask FFFF – Switch to full int.
Spin Ready
(P)PATA Reset
Failed sys sect. write
Read Ver Retrys
Read Ver Retrys
Read Ver Retrys
Read Ver Retrys
Read Ver Failure!
Failed sys sect. write
Unable To Load Overlay 01|000A
The malfunction is caused by corrupted G-List or SMART. When G-List or SMART is corrupted, the HDD can’t reallocate bad sectors. Therefore, the HDD will consider its self in read-only state and ATA commands can’t be executed again. This is the reason why the HDD reports “Failed sys sect. write” and “Unable To Load Overlay 01|000A” to terminal log.
The solution for such malfunction is to erase G-List or initialize SMART by respective command “i4,1,22″ and “N1″. The following is the procedure:
Erase G-List:
Step 1. In cmd mode, switch power off and on. Press keyboard [Ctrl] + [Z] to enter level T (T>) before the first message “Failed sys sect. write” output to log.
Step 2. Load Cert by command [Crtl] + [R].
Step 3. Input command “i4,1,22″ to erase G-List.
Initialize SMART:
Step 1. In cmd mode, switch power off and on. Press keyboard [Ctrl] + [Z] to enter level T (T>) before the first message “Failed sys sect. write” output to log.
Step 2. Enter level 1 by command “/1″ (T>/1).
Step3. In level 1, input command “N1″ (1>N1) to initialize SMART.
After erasing G-List or initializing SMART, the HDD will get detected and data area can be accessed. However, there is a situation when the command to erase G-List or initialize SMART will be stuck. That is cause by bad physical sectors located in G-List or SMART cylinder. No solution for that case.
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