Hi
Hard drive is
model: ST1000LM024
part: HN-M101MBB/EX2
Laptop HDD led showed constant activity, rebooted successfully but then froze. HDD is now not recognized at all by computer, won't show in bios.
plugged in as a slave dmesg reports:
Code:
[197281.097439] ata4: exception Emask 0x10 SAct 0x0 SErr 0x4050000 action 0xe frozen
[197281.097443] ata4: irq_stat 0x00000040, connection status changed
[197281.097445] ata4: SError: { PHYRdyChg CommWake DevExch }
[197281.097450] ata4: hard resetting link
[197286.869631] ata4: link is slow to respond, please be patient (ready=0)
[197291.102566] ata4: COMRESET failed (errno=-16)
[197291.102571] ata4: hard resetting link
[197296.875472] ata4: link is slow to respond, please be patient (ready=0)
[197301.108422] ata4: COMRESET failed (errno=-16)
[197301.108429] ata4: hard resetting link
[197306.881337] ata4: link is slow to respond, please be patient (ready=0)
The drive sounds as though spinning up and clicks as though heads moving i think but i am not an expert.
There is no timeout, the drive does not give up or spin down or stop clicking until unplugged.
I have a very similar donor drive available with matching part numbers etc.
What is the likely cause of fault? heads/preamp or possibly PCB? i would expect the drive to spindown and not stop responding/freezing if just a head issue, is that possible?
I have read about a serial adapter to read diagnostic information, does this work on my drive and is there a schematic anywhere for this? would it help diagnose my issue?
can pcb be swapped on this model? is rom transplant necessary?
The lost information is not worth the cost of professional recovery to me but i am interested in trying anyway.
I have not opened the cover yet but i have use of a cleanroom if head surgery is necessary. other than that i have no specialist recovery tools.
Side question: I have read about connecting a working drive then suspending and swapping the pcb to a bad drive to recover data. in what situation does this work but swapping the pcb normally not work? why does it have to be connected then suspended? when there is a problem with the system area of the platter is this correct?
thanks in advance.