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Mac experts please!

sherlob Avatar
sherlob Plus
17 3.3k 133 United Kingdom
3 Jun 2021 3:40PM
Ok, I am going quietly crazy as a consequence of this problem...

I have recently bought a NAS enclosure with 2 4TB drives set in a RAID configuration. My idea is to move my primary image library off my Mac to the NAS drives and create multiple back ups. However, I am failing at the first hurdle - moving the files to the NAS drive.

When I try to copy the drives to the NAS drive I get two differing errors which are stopping the process mid way:

1. Some files are locked and can not be copied.

2. Some files are in use.

Now I have read around topic one and using the OPT/CMD/I on every group of files I see no locked files - short of using the "get info" command on every file (over 50,000) I am at a loss. I have also tried copying files folder by folder, but this tends to then generate error message 2 instead. In regard to this second error - I have no applications open that could be using any of the files. In case a process is for some reason accessing a file I have tried re-booting the Mac to no avail.

So far I have only 1/3 of my content copied across with no backup (which after a major data loss worries me!) I am copying them via WIFI which of course takes an age.

shagnasty Avatar
shagnasty 16 82
3 Jun 2021 5:30PM
From what you describe I think that this is a Permissions Issue. The mac system will lock files and/or folders and this invokes a security step if that linkage doesn't match. In simpler terms your mac has one user identity (you) and your NAS another. Yes I know that the user is you too, but unless those security protocols are brought together then the difficulties are likely to continue. The solution is to address the issues from the mac end. Set up the NAS software on the mac, create a network drive and permissions should get brought into a common line. Then once mac security fully understands that the NAS is now an authorised part of your world it should allow file transfers seamlessly. As far as wifi is concerned, this shouldn't be a major problem as long as you don't get carried away with too much distance, because then the signal will then nose-dive.
As you currently mention some 50,000 files I trust that you were successful in getting all or most of your files back

If you need any major help going forward then please don't hesitate to send me a personal message and the conversation can be taken forward more on a one-to-one basis.

Hope this helps Pat


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