Sunday, January 20, 2013 9:20 AM
I got a Message in Best Practice Analyzer regarding 4k Sector Size and vhdx Files on this Disk.
There is a Solution described here: http://social.technet.microsoft.com/wiki/contents/articles/13075.hyper-v-avoid-using-virtual-hard-disks-with-a-sector-size-less-than-the-sector-size-of-the-physical-storage-that-stores-the-virtual-hard-disk-file.aspx
But there is no Link or Information how to do this Resolution.
Are there any more Informations?
Monday, January 21, 2013 4:56 AMModerator
Hyper-V in Windows Server 2012 introduces support for large sector size disks to help ensure compatibility with emerging innovations in storage hardware.
The data storage industry is transitioning the physical format of hard disk drives from 512-byte sectors to 4096-byte sectors (also known as 4K or 4 KB sectors). This transition is driven by several factors, including increases in storage density and reliability.
Refer to following steps to verify the sector size of your physical drive:
- Install http://support.microsoft.com/kb/982018
- Run the following command from elevated command prompt:
Fsutil fsinfo ntfsinfo x: (where x: represents the drive that you are checking)
3. Use the values for "Bytes Per Sector" and "Bytes per Physical Sector" to determine the kind of drive that you have. To do this, use the following table:
Bytes Per Sector" value
"Bytes per Physical Sector" value
Advanced Format (also known as 512E)
I don’t find how to “report a physical sector size”, you may use the first solution, create new 4KB sector disk and perform a storage migration to move VHD data to the new disk.
For more information please refer to following MS articles:
Advanced format (4K) disk compatibility update (Windows)
Microsoft support policy for 4K sector hard drives in Windows
Hyper-V Support for Large Sector Disks Overview
Hope this helps!
TechNet Community Support
- Marked As Answer by Lawrence LvMicrosoft Contingent Staff, Moderator Monday, January 28, 2013 3:24 AM
Thursday, January 24, 2013 6:14 AMModerator
Saturday, January 26, 2013 10:03 AM
This is only a Server 2008-R2/Win7 Fix: http://support.microsoft.com/kb/982018. I guess Server 2012 includes this fix allready.
I have a 512E Drive.
How I create a new 4KB sector disk?
Saturday, January 26, 2013 3:47 PMNative support for 4KB drives was added to 2012. 2008 only supported 512E.