VMware: Snapshot operation exceeded the time limit for holding off I/O in the frozen virtual machine

After installing VMware Data Recovery I scheduled a fresh job to make a backup of my VM’s in the datacenter. The first 8 VM’s backuped successful, but the VM’s with a iSCSI target (Exchange, SQL) crashing after creating virtual machine snapshot. I received this error:

Creating a quiesced snapshot failed because the created snapshot operation exceeded the time limit for holding off I/O in the frozen virtual machine.

 

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Resolution:

This resolution applies to:

VMware ESX 3.*

VMware ESX 4.0 Update 1a

VMware Consolidated Backup 1.5 Update 2

VMware Data Recovery 1.1

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1. Modify the VMware Tools installation and disable “Volume Shadow Copy Service”

2. Reboot the VM

3. Rerun your backup job

Result:

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More information: VMware , Symantec

sanderdaems

Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has 15+ years experience in IT, primary focus: virtualization and modern worksplace.

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14 thoughts on “VMware: Snapshot operation exceeded the time limit for holding off I/O in the frozen virtual machine

  1. Ok, so please correct me if I’m wrong but not only does vmware VDR not only support VSS for applications but you also need to remove it from the guests in order to get reliable backups?

  2. Thank you!!

    I can’t explain why a big problem like that don’t have a r8eal solution on VMware web site!!

    The solution here solve all my problem with 2008 r2 server.
    the quiesced snapshot failed is gone

  3. This is not a solution to the problem. It only makes sure that the quiescing operation is not performed during snapshot.

    From VMWare:
    Quiescing a file system is a process of bringing the on-disk data of a physical or virtual computer into a state suitable for backups. This process might include such operations as flushing dirty buffers from the operating systems in-memory cache to disk, or other higher-level application-specific tasks.

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