Firewire HD appears in system report, but won't mount

[senseless]

I have a 2009 iMac with Yosemite installed. My external firewire drive shows up in the system report as a 2 Terrabyte drive in the firewire bus, but will not appear on the desktop and can't be used by final cut. It does not appear under "storage" in the system report either. This happened tonight, after months of use.

I tried shutting down and restarting everything and can't make it come back. What next?

 

[Intell]

Is the drive 2TB or is it misreporting as that size? Have you tried mounting it via Disk Utility?

 

[senseless]

Is the drive 2TB or is it misreporting as that size? Have you tried mounting it via Disk Utility?

Good idea. Disk utility says "The volume HDD2 appears to be ok", but under Mount Point, it says "Unmounted". 2 terabytes is the correct size. Thanks

 

[Intell]

Are you able to force mount it in Disk Utility using the Mount button in the top of the window?

 

[senseless]

When I select Repair Disk, it says "updating boot support partitions for the volume as required, the disk will mount for a second and then disappear from the desktop again. It still says the disk is ok.

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Are you able to force mount it in Disk Utility using the Mount button in the top of the window?

Oh, that did it! Why did I have to do this?

 

[Intell]

Sometimes, rarely, Mac OS X won't automatically mount a disk that it thinks is bad. It can sometimes mean the drive is starting to fail. Make sure you back up that drive in the event it is starting to fail.

 

[senseless]

Sometimes, rarely, Mac OS X won't automatically mount a disk that it thinks is bad. It can sometimes mean the drive is starting to fail. Make sure you back up that drive in the event it is starting to fail.

I'll do that for sure. Thanks for the help!

 

[Fishrrman]

I'll offer a suggestion, may be useful (or may be of no use at all):

Would it be possible to take the drive OUT OF the firewire enclosure?

And then, put it into something like a USB3/SATA docking station, or perhaps a USB3 external enclosure (even USB2 would do)?

The idea is to try the drive (itself) in -another- enclosure....

 

[senseless]

I'll offer a suggestion, may be useful (or may be of no use at all):

Would it be possible to take the drive OUT OF the firewire enclosure?

And then, put it into something like a USB3/SATA docking station, or perhaps a USB3 external enclosure (even USB2 would do)?

The idea is to try the drive (itself) in -another- enclosure....

It's working now, but thanks. My iMac does not have USB3, so I'm still stuck with FW. USB 2 is a little slow for video capture, I'm afraid.