Hello, 

Anyway, the last access timestamp is generally mandatory if you're using HSM.

Le 8 octobre 2015 13:55:36 CEST, Bent Christensen <BVC AT COWI DOT DK> a écrit :
>Your offhand thought is correct.
>
>NtfsDisableLastAccessUpdate goes all the way back to Windows 2000 where
>the time stamp of a directory would change if you did something with
>the files in it.
>
>I find it hard to imagine that anyone backs up based on the last-access
>time stamp and not the last-written time stamp?
>
> - Bent
>
>
>-----Original Message-----
>
>All,
>
>TSM 7.1.1 environment.
>My Windows fileserver colleague is asking me about any potential backup
>ramifications from disabling the LastAccessUpdate on our new Windows
>2012R2 fileservers.
>I didn't find any definitive answers via Mr. Google so I thought I'd
>reach out and see if anyone in the group had some knowledge.
>My offhand thought is that since we don't do any HSM, we don't really
>use this particular bit, but...
>
>Here is what he asked:
>
>By default Windows Server 2012 R2 disabled Last Access Update on files
>and folders.
>This is the registry location where this is stored:
>HKLM\SYSTEM\CurrentControlSet\Control\FileSystem\NtfsDisableLastAccessUpdate
>This KB articles discusses this and it says this:
>https://technet.microsoft.com/en-us/library/cc785435.aspx
>The disablelastaccess parameter can affect programs such as Backup and
>Remote Storage that rely on this feature.
>Does the TSM Baclient rely on this value? With it disabled do we lose
>anything with TSM?
>
>Thanks,
>Steve Schaub
>Systems Engineer II, Backup/Recovery
>Blue Cross Blue Shield of Tennessee
>
>
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