RAID won't copy Photoshop files.

I have a G-FORCE RAID Array attached to a AppleShare IP 6.3.3 server. It has worked for approx. six months without problem. As of last week, my users reported that they could no longer copy Photoshop (6.0.1) files to the RAID Array. I attempted to locally copy .psd documents to the Array and experienced the same problem. It appears that any document created with Photoshop (.psd, .tif, .eps, etc.) cannot be copied or duplicated on the RAID Array. All other documents (Word, Illustrator, Freehand, etc.) work just fine. Has anyone ever had this problem or does anyone have any suggestions? Any help would be greatly appreciated.
acokerAsked:
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weedConnect With a Mentor Commented:
Jim: please read the guidelines for posting comments and answers before locking up question. Don't use the answer button ESPECIALLY when repeating and definitely whe only posting 6 words....
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weedCommented:
What does it do when you try? Is there an error message? Have you checked the raid with Norton Disk Doctor?
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acokerAuthor Commented:
I completely replaced the RAID this weekend. I noticed a little more of a pattern. The affected files (corrupt) were all Photoshop files and they all had the picture preview  (normal option that has worked forever). The Photoshop files that did not have a preview were all fine. The only error message I can get it to produce is -412. I looked it up in the Apple Knowledgebase, but the nearest I can find is a +412 (QTSS - precondition error). Since this server doesn't support a QuickTime Streaming Server, the error doesn't make sense. I did not use NDD as it acted as though it would break the Array (tough to believe on a hardware RAID, but that's what is seemed like).
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weedCommented:
NDD shouldnt cause problems with the Raid. I used to run it on mine regularly. You should use it to find bad blocks, files with bad resource forks, etc.
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acokerAuthor Commented:
Okay. I agree that I need some maintenance. Beyond that, I still am stumped as to why the Photoshop file problem occured. I would have suspected a virus except: a. it was only on one drive on a server with 5 drives attached, b. it's a Mac and I aggressively keep up with the virus status on them (no new current viruses).
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weedCommented:
Could just be a bad block that the PS files got written over.
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JimbojonesCommented:
Rebuild the desktop on the RAID.
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JimbojonesCommented:
Weed.  Sorry but I see no mention of rebuilding the desktop in the previous comments.  Why waste time waffling on when six words are all that are needed.
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ComTechCommented:
Hello Jim, please use comments rather than the answer button.  We all do it when new to the site, even I did it, but when you post as answer, it will move the question from the Active questions, you will gain more friends if we all use comments.

Regards,
ComTech
Community Support Administrator
@ Experts Exchange
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acokerAuthor Commented:
weed,
Thanks for trying on this problem. I will run Norton Disk Doctor and rebuild the desktop at a later date. I still do not believe that this is the total problem with the situation, but I must throw in the towel.
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adamrayCommented:
Delete the comments in the 'get info' window and they will copy across just fine.

Photoshop update to fix this by stopping comments being written is available. Photoshop 6.0.1 Updater from Adobe

Is this a problem with the comments being stripped off and saved in a separate file on the raid which becomes a full file after about six months of heavy use?
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