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Copy file name to clipboardExpand all lines: articles/site-recovery/vmware-azure-troubleshoot-replication.md
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@@ -25,7 +25,7 @@ We recommend that you monitor the health of process servers in portal, to ensur
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## Step 2: Troubleshoot connectivity and replication issues
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Initial and ongoing replication failures often are caused by connectivity issues between the source server and the process server or between the process server and Azure.
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Initial and ongoing replication failures often are caused by connectivity issues between the source server and the process server or between the process server and Azure.
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To solve these issues, [troubleshoot connectivity and replication](vmware-physical-azure-troubleshoot-process-server.md#check-connectivity-and-replication).
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4. On the Source Machine, examine the logs at the location for error details:
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C:\Program Files (X86)\Microsoft Azure Site Recovery\agent\svagents*log
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### Process server with no heartbeat [error 806]
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In case there is no heartbeat from the Process Server (PS), check that:
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1. PS VM is up and running
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2. Sign in to the Master Target VM using an account that has administrator privileges.
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- Verify that the svagents service is running. If it is running, restart the service
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- Check the logs at the location for error details:
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C:\Program Files (X86)\Microsoft Azure Site Recovery\agent\svagents*log
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3. To register master target with configuration server, navigate to folder **%PROGRAMDATA%\ASR\Agent**, and run the following on command prompt:
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```
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## Error ID 78144 - No app-consistent recovery point available for the VM in the last 'XXX' minutes
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Enhancements have been made in mobility agent [9.23](vmware-physical-mobility-service-overview.md#from-923-version-onwards) & [9.27](site-recovery-whats-new.md#update-rollup-39) versions to handle VSS installation failure behaviors. Ensure that you are on the latest versions for best guidance on troubleshooting VSS failures.
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Enhancements have been made in mobility agent [9.23](vmware-physical-mobility-service-overview.md#mobility-service-agent-version-923-and-higher) & [9.27](site-recovery-whats-new.md#update-rollup-39) versions to handle VSS installation failure behaviors. Ensure that you are on the latest versions for best guidance on troubleshooting VSS failures.
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Some of the most common issues are listed below
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#### Cause 1: Known issue in SQL server 2008/2008 R2
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#### Cause 1: Known issue in SQL server 2008/2008 R2
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**How to fix** : There is a known issue with SQL server 2008/2008 R2. Please refer this KB article [Azure Site Recovery Agent or other non-component VSS backup fails for a server hosting SQL Server 2008 R2](https://support.microsoft.com/help/4504103/non-component-vss-backup-fails-for-server-hosting-sql-server-2008-r2)
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#### Cause 2: Azure Site Recovery jobs fail on servers hosting any version of SQL Server instances with AUTO_CLOSE DBs
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**How to fix** : Refer Kb [article](https://support.microsoft.com/help/4504104/non-component-vss-backups-such-as-azure-site-recovery-jobs-fail-on-ser)
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#### Cause 2: Azure Site Recovery jobs fail on servers hosting any version of SQL Server instances with AUTO_CLOSE DBs
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**How to fix** : Refer Kb [article](https://support.microsoft.com/help/4504104/non-component-vss-backups-such-as-azure-site-recovery-jobs-fail-on-ser)
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#### Cause 3: Known issue in SQL Server 2016 and 2017
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**How to fix** : Refer Kb [article](https://support.microsoft.com/help/4493364/fix-error-occurs-when-you-back-up-a-virtual-machine-with-non-component)
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**How to fix** : Refer Kb [article](https://support.microsoft.com/help/4493364/fix-error-occurs-when-you-back-up-a-virtual-machine-with-non-component)
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### More causes due to VSS related issues:
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To troubleshoot further, Check the files on the source machine to get the exact error code for failure:
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C:\Program Files (x86)\Microsoft Azure Site Recovery\agent\Application Data\ApplicationPolicyLogs\vacp.log
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C:\Program Files (x86)\Microsoft Azure Site Recovery\agent\Application Data\ApplicationPolicyLogs\vacp.log
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How to locate the errors in the file?
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Search for the string "vacpError" by opening the vacp.log file in an editor
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Ex: vacpError:220#Following disks are in FilteringStopped state [\\.\PHYSICALDRIVE1=5, ]#220|^|224#FAILED: CheckWriterStatus().#2147754994|^|226#FAILED to revoke tags.FAILED: CheckWriterStatus().#2147754994|^|
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Ex: vacpError:220#Following disks are in FilteringStopped state [\\.\PHYSICALDRIVE1=5, ]#220|^|224#FAILED: CheckWriterStatus().#2147754994|^|226#FAILED to revoke tags.FAILED: CheckWriterStatus().#2147754994|^|
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In the above example **2147754994** is the error code that tells you about the failure as shown below
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#### VSS writer is not installed - Error 2147221164
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#### VSS writer is not installed - Error 2147221164
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*How to fix*: To generate application consistency tag, Azure Site Recovery uses Microsoft Volume Shadow copy Service (VSS). It installs a VSS Provider for its operation to take app consistency snapshots. This VSS Provider is installed as a service. In case the VSS Provider service is not installed, the application consistency snapshot creation fails with the error id 0x80040154 "Class not registered". </br>
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Refer [article for VSS writer installation troubleshooting](https://docs.microsoft.com/azure/site-recovery/vmware-azure-troubleshoot-push-install#vss-installation-failures)
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Refer [article for VSS writer installation troubleshooting](https://docs.microsoft.com/azure/site-recovery/vmware-azure-troubleshoot-push-install#vss-installation-failures)
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