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November 21st, 2017 06:00
Windows Cluster File Server - NTFS Permissions
Hello and thanks for you time.
I recently setup a Windows SMB Cluster based on Server 2012 R2. I have successfully installed and configured Avamar 7.2.101-32 client and can backup and restore files to the SMB share across the cluster.
The trouble I seem to be running into is the restore is not restoring the correct NTFS permissions or owner on the restored contents. This has a very bad effect on user home folders and folder redirection where access is granted based on the owner of the directory.
I've been up and down this document http://www.searchemc.com/collateral/TechnicalDocument/docu59592.pdf and have done some searching but haven't found anything relating to the Windows Cluster File Server plug-in.
Any thoughts would be appreciated.
rugby01
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December 12th, 2017 16:00
You can try clearing the cache and backing up again
To correctly back up Windows access control list (ACL) changes, you must leave the NTFS Last Access Time feature enabled. The NTFS Last Access Time feature is enabled by default, but is sometimes disabled for performance purposes. If you disable the NTFS Last Access Time feature on a Windows backup client and you have already performed backups, then the Avamar Client for Windows software cannot detect any further ACL changes. This means that the ACL setting for the file during the original file backup is the ACL setting that applies on all future restores. Complete the following steps to reestablish proper ACL backup behavior. Procedure 1. Enable the NTFS Last Access Time feature by using one of the following methods: l Specify a value of 0 in the following registry entry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control \FileSystem\NtfsDisableLastAccessUpdate. A value of 0 enables Last Access Time, while a value of 1 disables Last Access Time. l On Windows 7, Windows Storage Server 2008, Windows Server 2008 R2, Windows Storage Server 2008 R2, Windows Server 2008, and Vista platforms, type the following command from a command prompt: fsutil behavior set disablelastaccess 0 2. Delete the following local Avamar Client for Windows cache files: l C:\Program Files\avs\var\f_cache.dat l C:\Program Files\avs\var\p_cache.dat The next backup process for the client re-creates the files.