Carefully pull the power from the drive or use an external power source with a switch. Thank you for the suggestion. Since it's failing drive, would power cycle hurt it and make it die faster? Is there any milder way without power cycle? Reboot machine does not lead to power cycle but it's not very...

lcoughey wrote: ↑Thu Jan 21, 2021 4:25 pm Repowering the drive is fine, but pay attention to the drive path assigned when it redetects. It may not be the same and you will need to modify you command accordingly.

I wonder if reboot causes repowering. I do not cutoff the power during reboot. Thank you.

I find the HDD works a few hours after reboot, and ddrescue reads about 90GB data out before the above mentioned 0-byte problem, at an average speed of 2 MB/s. Moreover, mdadm is able to read out the serial number just after reboot, but not any more after 0-byte problem reappears. Shall I keep reboo...

Thanks. I'm cloning other two drives. The data loss will lead to some extra work of several weeks, it's acceptable in the worse case. But I would like to try my best before giving up. After ddrescue, I tried dd as well, but it copies out more than 16TB data and is continuing, which is obviously wron...

1 of the 3 HDDs (Western Digitial WD3003FZEX Black 3TB SATA 6GB/S 7200RPM 64MB Cache 3.5IN Hard Drive) fails in a RAID 0 array. At first, it disappears from the OS. Then, it re-appears after re-plug the cables. However, it is not stable, sometime even the serial number cannot be read out (see below)...