Monthly Archives: October 2013

.vhd file corruption

I have performed a few steps below and it seems like the .vhd file is corrupted.

  1. When loading the .vhd file in Hyper-V, we got error "the file or directory is corrupted and unreadable";
  2. We tried mount the .vhd file directly to the Hyper-V host, but still got the same error;
  3. With vhdtool, the repair attempt as failed;
  4. Disabling the antivirus service and then re-mount the .vhd file, still got the same error;

May I know if Microsoft provides any support for this? and what normally is the root cause?

Thank you.

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Can not edit vhd, because the system thinks snapshots exist, but I disagree

Server 2008 (r1) SP2 host, running 2 Server 2008 virtual servers.

The problem child is an Exchange 2010 server, with a fixed disk size of 500gb, currently at 95% of capacity.

According to Hyper-V, no snapshots exist, None populate in the "snapshots" window, and when I navigate to the folder where Hyper-v wants to put them, none are present.

When I shutdown the server, it makes no effort to merge any existing deleted, but not yet merged snapshots.

I can’t say with 100% accuracy that no snapshots have ever been taken of this virtual, but if they were it was a long time ago.

I obviously need to expand this drive, and very soon if possible. How do I find the snapshot, that the edit vhd process thinks exists, or convince it that one doesn’t?


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