Failed to call RPC function 'Vss.FinishSnapshot'

KB ID: 2825
Product: Veeam Backup & Replication
Version: 9.x
Published: 2018-12-13
Last Modified: 2020-08-13
Get weekly article updates
By subscribing, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice.

Cheers for trusting us with the spot in your mailbox!

Now you’re less likely to miss what’s been brewing in our knowledge base with this weekly digest

error icon

Oops! Something went wrong.

Please try again later.

Challenge

Job will fail with the error Failed to call RPC function 'Vss.FinishSnapshot': Error code: 0x800401fd    

In the guest helper logs you will see the below occur before Veeam sends the VSSControl: FinishSnapshot started command in the task log.

18/10/2018 22:39:41 2688 INFO RPC: KeepSnapshotEx. Ok.
18/10/2018 23:00:00 21004 WARN Snapshot timeout occurred.


 

Cause

Vss snapshot is timing out before Veeam is able to send the finish command.

Solution

Add the below key to the registry location “HKEY_LOCAL_MACHINE\SOFTWARE\Veeam\Veeam Backup and Replication\” on the Veeam server. After applying the key make sure no jobs are running and restart the Veeam backup service.

The default value is 1200 so attempt doubling that value when creating the key.

VSSGuestSnapshotTimeout
Type: REG_DWORD
Default value: 1200 (in seconds)
Description: Found in job log as "VSSControl: KeepSnapshot started, ttl 1200 sec". Registry setting was added in v9 update 1. Prior to that, this timeout was hard-coded to 600 seconds. This registry key goes to the Veeam Server


 
Click here to send feedback regarding this KB, or suggest content for a new KB.
To report a typo on this page, highlight the typo with your mouse and press CTRL + Enter.

Spelling error in text

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Thank you!

Thank you!

Your feedback has been received and will be reviewed.

Oops! Something went wrong.

Please try again later.

KB Feedback/Suggestion

This form is only for KB Feedback/Suggestions, if you need help with the software open a support case

By submitting, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Verify your email to continue your product download
We've sent a verification code to:
  • Incorrect verification code. Please try again.
An email with a verification code was just sent to
Didn't receive the code? Click to resend in sec
Didn't receive the code? Click to resend
Thank you!

Thank you!

Your feedback has been received and will be reviewed.

error icon

Oops! Something went wrong.

Please try again later.