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Mac OS X Server 10.7.5 SMB File permissions and files locking

Posted on 2014-07-24
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Last Modified: 2014-09-27
We use the Mac server to share files between Windows 7/8 (SMB) and Mac (AFP) desktops but have recently had several problems with files being locked and permissions being lost/corrupted where we have to reapply read/write permissions for users to gain access to the files again.

The shared files are hosted on a raid connected by fibre but I believe the issue to be related to SMB.
I’m new to Mac Server so this could be a bit of a learning curve.
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Question by:Glyn Merritt
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Expert Comment

by:David Paris Vicente
ID: 40216523
Hi merrittuk,

For Assigning permissions to users and groups follow this steps:

1. Select a disk, folder, or file, then choose File > Get Info.
2. If the information in Sharing & Permissions isn’t visible, click the disclosure triangle.
3. Select a user or group from the Name column, then choose one of the following from the pop-up menu in the Privileges column. If necessary, click the lock icon and enter an administrator’s name and password.

For Appling permissions to all items in a folder or a disk follow this steps:

1. Select a folder or a disk, then choose File > Get Info.
2. Click the lock icon to unlock it, then enter an administrator’s name and password.
3. Choose "Apply to enclosed items" from the Action pop-up menu (looks like a gear).

By the way if think that the permissions are not function as you expected you can undo the your changes, for that just make sure the info Window remains open this will work except for applying permissions to all the items in a folder or disk.

Let us know if this helped.
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by:Glyn Merritt
ID: 40216904
Hi David

Thanks for the help, I'm fine reapplying the permissions but I would like to fix the issue that is causing the problems. I tired SMBUP (http://eduo.info/apps/smbup) but this will not integrate with Work Group Manager for authentication.

The Macs don’t experience as much of the issues as the Windows ones which makes me think it is an issue with SMB.
I’ve installed DAVE (http://www.thursby.com/purchase/dave) and pointed the Windows client computers to the newly created DAVE shares having disabled native SMB to see if this helps solve the issue.

I’ve also noticed that Time Machine Backup is running along with ARC Online Backup in the background. I assume that if both backups are running and there is a high client activity that this could have an adverse effect on the server and services.

Cheers
Glyn
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Expert Comment

by:David Paris Vicente
ID: 40217101
And you are using Open Directory File Sharing with those software´s?

Maybe they are in conflict.

I never used the solutions that you mention, but I always succeed using the Sharing service in open directory for both SMB and AFP, where Mac users and Windows users can share files and folders.
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Glyn Merritt earned 0 total points
ID: 40227496
It looks like the native SMB in OSX 10.7 is not man enough to deal with the amount of client computers owing to Apple ditching samba and hashing their own.
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by:Glyn Merritt
ID: 40347392
No real answer can be found.
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