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Strange restore problem, when the stars all line up (more for me when i forget, than a support needed)

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So this seems to be a problem with only one site, and just 2 of the 4 servers. Here are the details.

The two servers are virtual guests, 2008 32bit runinng on VHD (created in 2008 hyper-v, INTERGRACTION TOOLS NOT UPGRADED)

The host is a 2012R2

The restore server is 2012R2

Acronis is 11.7.44421 and the backup plan uses windows VSS

 

Here come the key words

When trying to boot the DC you need to boot directory restore and run a repair, which then complains of "the log file sector size does not match the current volume's sector size" when trying to repair AD of exchange using eseutil.exe /r

 

As the subject says this is more for me when i forget, rather than a bug, as this seems to only happen with these sets of issues. I have upgraded the intergraction to see if that helps.

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When restoring to a 2008 R2 hyper-v it works fine.

 

I suspect that it might have something to do with VHD vs VHDX but can't confirm due to work loads.

Hi Claire,

VHDX has intruduced a new feature called 512e which means it emulates 512-byte-sectors while underlying sectors are 4k, VHD is always 512-byte. 

Here is a article that describes the impact on AD databases regarding 512/4k sectors in VHD(x) when converting/virtualizing and how to solve.

In addition Microsoft has released KB2855336 which fixes AD corruption after a power failure (MSDN blog).