I’ve been getting quite a few inquiries about problems saving files from Photoshop directly to
network drives when using the recently released Mac OS 10.5.3. (I’m told the issue can affect InDesign and maybe other apps as well.)
The short story is that we’ve been working closely with Apple to troubleshoot the issue and have identified the cause. Apple is working on a fix, and we expect they’ll release it in the next System Update.
The slightly longer story is that saving directly to a network is a generally bad idea. Here’s what I’ve heard from a contact in engineering:
Directly writing to a network filing system adds a level of complexity, which includes timing issues, network noise, performance, and other potential issues. We’ve occasionally run into bugs with different configurations/combinations, but as there are too many variants for us to reliably test and certify all the clients, servers, hardware and software, we recommend the safer course of working with files locally and then copying them up to a file server when you’re done. While directly reading/writing to network file systems should work in theory, and while we do some limited testing in the most popular configurations to verify that it does, we can not certify that it will work reliably in your configuration.
I know that’s not what you may want to hear, but it’s a long-standing advisory. Saving files locally, then transferring them, offers better performance as well as greater reliability.