troubleshooting Question

VSS Event ID 8229 - Hyper-V backups fail

Avatar of Joe Brown
Joe Brown asked on
Storage Software* iscsiWindows Server 2012* Volume Snapshot Service (VSS)Hyper-V
24 Comments2 Solutions5541 ViewsLast Modified:
Hello Everyone,

I have 2 Hyper-V Host servers (non clustered) that are throwing Backup errors when trying to backup the Hyper-V servers.  Our backup service is Barracuda Cloud...however they cannot help.

Event ID 8229 in the VSS

===============================
A VSS writer has rejected an event with error 0x800423f3, The writer experienced a transient error.  If the backup process is retried,
the error may not reoccur.
. Changes that the writer made to the writer components while handling the event will not be available to the requester. Check the event log for related events from the application hosting the VSS writer.

Operation:
   PrepareForSnapshot Event

Context:
   Execution Context: Writer
   Writer Class Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
   Writer Name: Microsoft Hyper-V VSS Writer
   Writer Instance ID: {7ce2a182-2c5e-4e8f-afb9-b94d68791308}
   Command Line: C:\Windows\system32\vmms.exe
   Process ID: 2840

=========================

Using VSSADMIN LIST WRITERS shows all writers with "No Error" on both the host machine and Hyper-V machines.  All Hyper-V files including the .avhdx files are on an iSCSI volume.

Right now our backups are failing for the Hyper V servers but Barracuda cannot help because they say it's a Microsoft Problem.  Any help?
ASKER CERTIFIED SOLUTION
Mark Bill
Exchange, AD, SQL, VMware, HPE, 3PAR, FUD, Anti MS Tekhnet, Pro EE, #1

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 2 Answers and 24 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 2 Answers and 24 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros