OSX disk issue gurus step right up, please

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scottjpalmer

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#97205 13-Feb-2012 21:18

My external USB HDD has a wee (slight understatement) issue . . .

On plugging it in, one partition takes a few minutes to mount and when it does I get this:

Running disk verify/repair results in this whether run in OSX or recovery mode:

I can open the volume but it takes 30s to a minute for each folder to open and copy pasting off it seems to drop to a very very slow pace after about 112MB.

It isn't life or death stuff, that is all stored in multiple other locations, but it is still annoying . . .

Any suggestions? My plan is copy the stuff off then blow the partition away, the copying off bit is what I am hoping for a miracle cure for.

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#581089 13-Feb-2012 21:20

Sounds like either a bad block or a filesystem table corruption (or even corrupt inodes).

You nailed it though: copy stuff out and reformat it.

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scottjpalmer

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#581092 13-Feb-2012 21:24

magu: Sounds like either a bad block or a filesystem table corruption (or even corrupt inodes).

You nailed it though: copy stuff out and reformat it.

Yup ta, the copying off bit is what I am hoping for a sneaky method for that works faster than standard copy paste coz the screwed table is obviously screwing with the copy speed too . . .

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#581093 13-Feb-2012 21:25

Well, you could always use dd to do a binary dump onto an image. But that's likely to copy bad filesystem data, if there is any.

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freitasm

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#581098 13-Feb-2012 21:28

Tried on a Windows machine?

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#581100 13-Feb-2012 21:29

freitasm: Tried on a Windows machine?

The screenshot says HFS+ volume. My guess is Win7 won't see it. (Mine used to, but not anymore)

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RunningMan

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#581101 13-Feb-2012 21:29

I had a similar issue a while back. Took the drive to someone who has DiskWarrior - fixed perfectly.

Maybe try a couple of Apple Service Providers, see who has it, and how much they'd charge to run it.

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#581102 13-Feb-2012 21:31

magu:
freitasm: Tried on a Windows machine?

The screenshot says HFS+ volume. My guess is Win7 won't see it. (Mine used to, but not anymore)

From what I've seem Apple released HFS+ drivers for Windows 7, read only though - probably good to see if it would read faster than R/W.

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scottjpalmer

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#581103 13-Feb-2012 21:32

RunningMan: I had a similar issue a while back. Took the drive to someone who has DiskWarrior - fixed perfectly.

Maybe try a couple of Apple Service Providers, see who has it, and how much they'd charge to run it.

Yeah ta that was suggested but steep for one time use (hopefully) on non-critical data.

Anyone in Wellington got it? :-)

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#581104 13-Feb-2012 21:32

freitasm:
magu:
freitasm: Tried on a Windows machine?

The screenshot says HFS+ volume. My guess is Win7 won't see it. (Mine used to, but not anymore)

From what I've seem Apple released HFS+ drivers for Windows 7, read only though - probably good to see if it would read faster than R/W.

Yeah, Bootcamp installed them by default. They actually do R/W (at least they worked on mine). Won't work if you have FileVault 2, though.

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