Hi

Hi

i have looked at this article: http://blogs.technet.com/b/askcore/archive/2014/02/17/what-39-s-new-in-defrag-for-windows-server-2012-2012r2.aspx

what can be done to resolve this error:

Microsoft-Windows-Defrag(257 - None): The volume H (H:) was not optimized because an error was encountered: Neither Slab Consolidation nor Slab Analysis will run if slabs are less than 8 MB. (0x8900002D)

it's a server running on Hyper-V 2012R2 , with dynamic disks.

or is it safe to ignore this?

Hi,

There's no need to run Storage Optimizer on thin provisioned LUNs that use an allocation size (also known as slab size) of less than 8 MB.

This is expected behavior because slab consolidation and slab analysis has been disabled on thin provisioned LUNs that have a slab size of less than 8 MB.

For more detailed information, please refer to the article bellw:

Storage Optimizer memory use increases when it runs on thin provisioned LUNs
http://support2.microsoft.com/kb/2964429

Best Regards,

Mandy