Ps doesn't open because of the "Scratch disk are full" problem despite I have 47 Gb of free space.

[Alena240227865cac]

Hello! After the latest update my Photoshop v.24.1 start to show an error "Scratch disks are full" but i have almost 50 Gb of free space on my mac. At the moment Ps even cannot open the file wich weight is less than 30 Mb. When i'm trying to open any Ps file, an error appears and i can just click "Ok". Also in this window Ps shows only 4 Gb of free space, but i have a lot more, like i said.

Please, help me with this 

[kglad]

<moved from using the community >

[TheDigitalDog]

See: https://helpx.adobe.com/photoshop/kb/troubleshoot-scratch-disk-is-full.html

It is recommended to have minimum 20 GB of free space on your OS hard drive while working with Photoshop. Additional free space may be required based on the file type you're working with.

[Conrad_C]

I have seen this too. The macOS Finder says there are 206GB of space available, but for the same volume Photoshop thinks I have 177GB available. iStatMenus agrees with macOS, not Photoshop.

I don’t know the exact cause, but it is possible that Photoshop is using an outdated method of calculating free space. In recent versions of macOS, the free space calculation has become more complicated and less useful because of the new way it counts storage usage. Some of the reasons are explained in this article:

Explainer: Disk free space (Howard Oakley)

To avoid the error you are having, I would recommend freeing up a lot more space so that even after accounting for a discrepancy, Photoshop still has enough to work with. I personally do not like running a Mac or PC with less than 100GB free space, because of the many large cache and swap files used by not only Photoshop but macOS itself.

But also note that the larger the document, the bigger the scratch file needs to be. A Mac with 100GB free might have enough Photoshop scratch file space for a modest document, but I know from experience that documents with larger pixel dimensions and more layers can sometimes create scratch files that are several hundred GB in size. So my primary assigned Photoshop scratch disk is an external SSD with over 500GB free. (When that external SSD is not attached to my MacBook Pro, Photoshop falls back to the laptop’s internal storage with 200GB free, so some of my very large files can’t be edited until I can plug in the big empty external scratch disk.)

If you use Apple Time Machine for backups, and your Time Machine backup is current, and you are comfortable working in Apple Disk Utility, another workaround would be to manually strip Time Machine local snapshots from your Mac, because these temporary files can use many GB of storage space.

How to manage Time Machine snapshots using Disk Utility (Macworld magazine)

View APFS snapshots in Disk Utility on Mac (Apple help article)

[Nancy OShea]

...shows an error "Scratch disks are full" but i have almost 50 Gb of free space on my mac.

By @Alena240227865cac

==========

Cough. You need a lot more physcial memory.  Either a bigger primary drive or the addition of externals.  For comparison, my aging workstation has a 2 TB internal hard drive.  I also have a 1.5 TB external for backup.  And that's barely sufficient for all I do.  See screenshot.

Scratch Disk is consumed by every action, every filter, every layer...  Even small images consume a lot of resources over time.

Hope that helps.

[D Fosse]

Just to sum up, there are two separate issues here:

• As Nancy points out, 47 GB free space is not nearly enough. You need anywhere from 200GB to 1 TB, depending on file sizes and number of documents open.
• Why Photoshop reports a lower amount than MacOS I don't know. This has come up a few times here in the forum, and seems to be specific to MacOS. I've never seen it reported from Windows. This should be posted to the Bugs subsection.

[Jumpenjax]

https://community.adobe.com/t5/photoshop-ecosystem-discussions/p-photoshop-won-t-open-because-scratc...

[Jumpenjax]

Look at this link to find some answers:

https://community.adobe.com/t5/photoshop-ecosystem-discussions/p-photoshop-won-t-open-because-scratc...