Target Mode Unreliable

[AluminumBrains]

Seagate Hard Drive fails running 10.8 on MBPro mid 2010, would not launch recovery partition, and fails to repair in Disk Utility

1- With the problem drive still in its original machine (MBPro, 10.8), target mode (with FW800) would show the drive in DU but it fails to mount.

2- With the drive in an external case with USB connection, the drive showed in DU as non-repairable but DID mount, and data was copied.

3- The MBPro is not the problem, because with a new drive in the same target mode set up in (1) above, a properly working drive mounted fine in target mode.

4- The FW800 cable is not the problem, because it worked fine with other drives.

5- With the NewerTech universal drive adaptor, the drive failed to mount (http://eshop.macsales.com/item/NewerTech/U3NVSPATA/) .

6- The case that the drive mounted through was this: http://eshop.macsales.com/shop/USB2/OWC_Express

Conclusion: target mode mounting can be unreliable in troubleshooting, and some cases don't work as expected under certain situations.
I will try Disk Warrior directory repair first and if no luck I will format the drive. My guess is no mechanical damage, but only time and testing will tell.

 

[chscag]

Conclusion: target mode mounting can be unreliable in troubleshooting, and some cases don't work as expected under certain situations.
I will try Disk Warrior directory repair first and if no luck I will format the drive. My guess is no mechanical damage, but only time and testing will tell.

Probably a waste of time. Since you were able to extract the data from the drive, don't mess with it any longer. Just replace it with a new one and press on. Once a drive begins to act up like yours, it's on its way to total failure.

 

[johnodd4]

easy answer.

the seagate hard drive failed they fail like crazy this is why apple no longer uses seagate hard drives in there computers seagate has a issue with firmware corruption where the firmware becomes unstable and you have to flash a new firmware to the drive using windows because seagate won't release a mac version of the seagate firmware update utility so don't bother go and buy a western digital or even a toshiba drive there much more reliable