A planned migration fails with an incomplete recovery

Products

• VMware Live Recovery

Issue/Introduction

Symptoms:

• A planned migration fails with an incomplete recovery.
• You see an error message similar to:
  
  Cannot unmount datastore <Datastore_name> from host <Hostname>. The resource <Datastore_name> is in use
   
• In the Service Manager logs on the Data Recovery site, you see messages similar to:
  
  hostName = "esxi14.example.com",
  --> host = 'vim.HostSystem:host-56',
  --> datastoreName = "DATASTORE01_LUN3",
  --> datastore = 'vim.Datastore:datastore-67',
  --> msg = "Cannot unmount datastore 'DATASTORE01_LUN3' from host 'esxi14.example.com'. The resource 'DATASTORE01_LUN3' is in use.",
  --> key = "com.vmware.vim.datastore.error.unmountVmfsVolumeFailed",
  --> arg = (vmodl.KeyAnyValue) [
  --> (vmodl.KeyAnyValue) {
  --> dynamicType = ,
  --> key = "name",
  --> value = "DATASTORE01_LUN3",
  --> },
  --> (vmodl.KeyAnyValue) {
  --> dynamicType = ,
  --> key = "reason",
  --> value = "storageIORMEnabled",
  --> }
  --> ],
  --> message = ,
  --> }
  --> ],
  --> type = ,
  --> name = "DATASTORE01_LUN3",
  --> msg = "The resource 'DATASTORE01_LUN3' is in use."
  --> },
  --> hostName = "esxi15.example.com",
  --> host = 'vim.HostSystem:host-59',
  --> datastoreName = "DATASTORE01_LUN3",
  --> datastore = 'vim.Datastore:datastore-67',
  --> msg = "Cannot unmount datastore 'DATASTORE01_LUN3' from host 'esxi15.example.com'. The resource 'DATASTORE01_LUN3' is in use.",
  --> }
  --> ],
  --> msg = "Cannot unmount datastore 'DATASTORE01_LUN1' from host 'esxi14.example.com'. The resource 'DATASTORE01_LUN1' is in use. Cannot unmount datastore 'DATASTORE01_DSC01_LUN1' from host 'esxi15.example.com'. The resource 'DATASTORE01_LUN1' is in use. Cannot unmount datastore 'DATASTORE01_LUN2' from host 'esxi14.example.com'. The resource 'DATASTORE01_LUN2' is in use. Cannot unmount datastore 'DATASTORE01_LUN2' from host 'esxi15.example.com'. The resource 'DATASTORE01_LUN2' is in use. Cannot unmount datastore 'DATASTORE01_LUN3' from host 'esxi14.example.com'. The resource 'DATASTORE01_LUN3' is in use. Cannot unmount datastore 'DATASTORE01_LUN3' from host 'esxi15.example.com'. The resource 'DATASTORE01_LUN3' is in use.",
  --> }

Environment

VMware Site Recovery Manager 8.x

Cause

This issue is caused when Storage I/O control is enabled on the datastore, which creates a mix of unprotected and protected virtual machines on same datastore.

Resolution

To resolve this issue:

1. Move the unprotected virtual machines to another datastore.
2. Disable Storage I/O control on the datastore. For more information, see Troubleshooting Storage I/O Control (1022091).
3. Perform a planned migration in Site Recovery Manager to verify.

Additional Information

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SRM Planned Migration fails with error: Cannot unmount datastore [NAME] which has VMs on it