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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