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defragmentation parameters...

what would the following parameters be for a defragmentation operation.. I could not see it for OS2008

/k
/g
/$
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thank u

david, would you have old reference what those 3 were.. we found in old script.. just trying to see what they were trying to do or impact
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http://blogs.technet.com/b/askcore/archive/2014/02/17/what-39-s-new-in-defrag-for-windows-server-2012-2012r2.aspx


/K     Perform slab consolidation on the specified volumes.

i mentions [g] is new for 2012?
but no mention for $, yet..

can you break down in laymans term what is [Perform slab consolidation on the specified volumes.]
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Would G & K parameter be used for physical drives only or for VM also?

can you give an example of G & K.

*When 'G' is to Optimize, what exactly does it Optimize?
lets say the volume has 3 LUNs, what will it do to optimize?

*
>>You have one or more thin provisioned logical unit numbers (LUNs) that are using a slab size that's smaller than 8 megabytes

<8MB is almost nothing, space wise.. what will be a purpose for such a drive?
In this context, when you said 'consolidation', does it mean 'creating a LUN <8MB'
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thanks