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Very possible.

Try a command-r boot to the recovery console then run a repair disk with Disk Utility and see what you get.
 
Very possible.

Try a command-r boot to the recovery console then run a repair disk with Disk Utility and see what you get.

it will repair just fine, but somehow every now and then when i delete some stuff it will happen again
 
it will repair just fine, but somehow every now and then when i delete some stuff it will happen again

What kind of message do you get when you repair it? After you repair, you are saying it goes away for a while, then comes back?

Assuming you are not powering down while booted or something that would cause disk corruption, this sounds like a drive headed for a dirt nap. :(

You might also try running the Apple Hardware Test and see if that turns up anything. It is possible a bad memory module could lead to disk corruption, although this is less likely than a bad drive.
 
What kind of message do you get when you repair it? After you repair, you are saying it goes away for a while, then comes back?

Assuming you are not powering down while booted or something that would cause disk corruption, this sounds like a drive headed for a dirt nap. :(

You might also try running the Apple Hardware Test and see if that turns up anything. It is possible a bad memory module could lead to disk corruption, although this is less likely than a bad drive.

They say repair is successful or complete (can't remb). After that I verify disk again and they say there's no error.

The incorrect block count for file usually points towards a specific file. so example after i delete file A it gives me that problem, then probably a while later i delete file G it will give me the error. not always though.

alright will give it a go.
 
Very possible.

Try a command-r boot to the recovery console then run a repair disk with Disk Utility and see what you get.

I'm getting this a lot after using Photos for a while. I've been deleting quite a few unwanted images lately. I periodically run Disk Utility, and many image files are reported as having an invalid block size, with a recommendation to repair. I've repaired several times now, and each time the repair is successful. But I'm pretty sure that if I do some more deleting or reorganising in Photos, the problem will happen again. rMBP (using on-board flash drive).

Any thoughts or recommendations?
 
Hmm... I don't know. Otherwise things work fine? No slowdowns or beachballs like you start to see when a drive is failing? So it is just some image files?

No, it's behaving quite normally in all other respects, a bit of a puzzler. The files in question always seem to be RAW images in the Photos library and, I suspect, ones that I have deleted. A bug in Photos, maybe.
 
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