Photoshop CC2015. Disk Error Message When Opening Files on MacOS

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Regular Disk Errors in Photoshop 2014 + 2015 - Multiple Machines/Multiple Disks. IO Issue?

I get a message stating "File could not be opened due to a disk error" multiple times daily when opening files in Photoshop. A file which receives this message will usually open on the second or third attempt.

This issue occurs on my late 2014 5k iMac, a late 2015 5k iMac and a late 2015 macbook pro - all with maxed out specs. All three machines have internal SSD.

I work with a lot of large documents - often around 5-10 GB with up to 500 layers. However, Photoshop efficiency sits at 100% - the machines don't seem to be choking on the particular files triggering the issue.

It doesn't seem to matter weather I am opening files from the internal SSDs or multiple external drives but I get these daily disk errors on all disks and machines. Copying files in the finder or any other application's disk IO doesn't cause any sort or error throughout each system. With the same issue occurring on multiple machines and multiple disks, I'm surprised that there don't seem to be any other reports of this.

About a month ago, I did a strange experiment - I actually created a droplet which triggers an action of simply opening a document. To my surprise all files opened with the 'open' droplet open correctly with any error message. So there must be something going on with opening directly via Photoshop.

Happy to provide more info if needed.
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Mark Sterne

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Posted 3 years ago

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Chris Cox

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If Photoshop says there was a disk error, it is because the OS said that there was a disk error -- Photoshop is just passing along what it got from the OS.

Double check the error messages though, and make sure they aren't coming from a third party plugin (like some font managers).
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Steve Sprengel, Champion

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On Macs, is there some sort of low-level/system event log where you can see the filename and location and type of disk error, to help track down what is happening?
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Chris Cox

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There is no log for that, but there are command line tools that can show file system errors and access -- but they're far from easy to use. (something I'd only ask an experienced developer to fight with)

If you're hitting a lot of errors, then Disk Utility might show errors or SMART failures for the related disks (boot volume, scratch disks, and wherever you are storing files). If the problem is just disk data structures, then Disk Utility might be able to repair it.
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Mark Sterne

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Hi Chris...I will give anything a go if it can provide some insight into this.
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Mark Sterne

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Chris, I run a SMART status check about once a week. Have had no issues on any of these machines.

These machines are run very lean and clean. Regular maintenance. No extra junk....font managers, plug ins etc.
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Mark Sterne

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Hi Chris,

Thanks for the reply.

Do you think it is strange that the OS only ever passes on those errors to Photoshop and nowhere else throughout the system? Or why opening via the droplet has never triggered an error?

The same files which error out are regularly copied between disks without error.

As mentioned, no other disk I/O has ever reported a disk error with the machines and disks mentioned. Not a single time.

I would totally understand a suspect machine or disk but we are talking 3 relatively new machines and around 10 external hard drives.

Thanks
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Mark Sterne

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I unboxed a new mac and installed photoshop.

That same day I had the Disk error when opening files. At that time, there was no other software installed except the operating system.

??
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Chris Cox

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And yet, millions of other machines don't get disk errors. There is something odd about your systems, which is causing these disk errors. Probably something you installed or changed, and forgot about.
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Tony Montano

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I get the same error Mark, I feel your pain.
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Mark Sterne

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Hey Tony - this issue miraculously disappeared on the 2015.1.2 Release.

On all 3 of my machines. The OS wasn't updated, nothing else installed or removed - only Photoshop updated.
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Tony Montano

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Nice! unfortunately for me I have the latest update on my OS and Photoshop and still get the disk error... usually when I try and open a smart object. When it happens I'll close photoshop, open photoshop again, and I can then open the smart object. Not sure why it gets the error. It usually happens to me once a day.