We help IT Professionals succeed at work.
Get Started

Hyper-V VSS Errors

Last Modified: 2016-02-10
I have a Server 2012 Hyper-V host with a Server 2012 guest.

Windows Server Backup on the Hyper-V host has been reporting the the backups have been "Completed with Warnings"

The status of the backup job reads "Completed with warnings. Backup succeeded but some components backed up were inconsist..."

On the Items tab of the Details screen I see:
N: / Completed / Full
M: / Completed / Incremental
Host Component / Completed / Full

On the Errors tab of the Details screen I see:
HyperV / The component SERVER01(Backup Using Child Partition Snapshot) was skipped during the snapshot and will not be available for recovery.  Error: The writer experienced a transient error.  If the backup process is retired, the error may not reoccur.

When I run "vssadmin list writers" I get:
Writer name: 'Microsoft Hyper-V VSS Writer'
   Writer Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
   Writer Instance Id: {21751d9b-b97b-4485-9438-7208912ea8b1}
   State: [1] Stable
   Last error: Unexpected error

I've tried increasing the space allowed to VSS but the error is continuing.  Where should I look next to resolve this?
Watch Question
Senior Technical Architect - HA/Compute/Storage
Distinguished Expert 2020
This problem has been solved!
Unlock 2 Answers and 3 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE