Difference between vhd and vhdx
Article ID: CTX313719
Updated On:
Description
What's the difference between vhd and vhdx?
Instructions
- The maximum capacity of VHD and VHDX is different:
Prior to Windows Server 2012, the maximum capacity limit for VHD virtual hard disks was 2 TB. VHDX can reach up to 64 TB.
- VHDX is optimized for VHD performance:
The advantages of VHDX are not limited to capacity improvements. The VHDX 4 KB size helps improve performance compared to VHD files.
- VHDX file self-protection function:
By continuously monitoring metadata updates, VHDX also provides file error protection in the event of a sudden power outage, which is not available in the VHD format. Providing larger file blocks for dynamic and differential disks and storing custom metadata features are the differences between VHD and VHDX.
Environment
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Additional Information
Reference:
https://www.netwatch.me/2015/03/19/vhd-vs-vhdx-hmm-whats-the-difference/
https://www.jgspiers.com/speeding-up-citrix-pvs-merge-boot-times-with-vhdx-uefi-refs/#:~:text=Citrix%20PVS%20historically%20used%20the,and%20larger%20disk%20size%20limits.&text=PVS%207.11%20is%20Server%202016,ReFS%20for%20your%20vDisk%20stores
https://www.netwatch.me/2015/03/19/vhd-vs-vhdx-hmm-whats-the-difference/
https://www.jgspiers.com/speeding-up-citrix-pvs-merge-boot-times-with-vhdx-uefi-refs/#:~:text=Citrix%20PVS%20historically%20used%20the,and%20larger%20disk%20size%20limits.&text=PVS%207.11%20is%20Server%202016,ReFS%20for%20your%20vDisk%20stores
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