BACK TO KB LIST

Unable to Mount VeeamBackup_ Datastore - Specified Key, Name, or Identifier Already Exists

KB ID: 1690
Product: Veeam Backup & Replication | 9.5 | 10 | 11
Published: 2012-11-13
Last Modified: 2021-11-12
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


During a Veeam vPower NFS-based operation (SureBackup, Instant Recovery, Instant Disk Recovery, or Other-OS FLR), the following errors may occur: 
Unable to mount vPower NFS volume (<mountserver_ip>:/VeeamBackup_<mountserver>). Fault "AlreadyExistsFault",
Error The specified key, name, or identifier already exists.
Unable to create datastore VeeamBackup_<mountserver_ip> on host <esxi_host>, because it already exists
The Datastore that Veeam Backup & Replication will attempt to create will always start with the prefix 'VeeamBackup_' and the ending with the Mount Server's hostname, FQDN, or IP.

Cause

This error occurs when the vSphere Environment cannot create the 'VeeamBackup_' datastore because a datastore already exists with that name, or there is an entry stuck in the Datastore cache.

Solution

Initial Troubleshooting

Before proceeding to more advanced troubleshooting steps, determine if a datastore matching the name specified in the error is visible via a vSphere Client. If so, unmount it.

  • Using the vSphere Web Client, connect to the vCenter that manages the ESXi host specified in the error. Review the list of Datastores and unmount the one that matches the datastore name shown in the error.
  • Using the vSphere Web Client, connect directly to the ESXi host specified in the error. Review the list of Datastores the ESXi host lists, and unmount the one that matches the name shown in the error.

Advanced Troubleshooting

If the unmount process fails, or there is no datastore matching the name visible, you should consider restarting the management agents on the ESXi host listed in the error.

If the issue persists after restarting Management Agents, review KB4167 for details on removing latent entries from the ESXi host's Datastore cache.

Send Article Feedback
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
Start using Veeam:
Download the product
&
Activate the license key
Thank you!

Thank you!

Your feedback has been received and will be reviewed.

error icon

Oops! Something went wrong.

Please try again later.