Virtual machine disk consolidation fails with error "Failed to copy source VMDK to destination VMDK : I/O error"

Products

• VMware vSphere ESXi

Issue/Introduction

Disk consolidation for a virtual machine fails, displaying this error in the Tasks and Events log:

Failed to copy source (/vmfs/volumes/<datastore-uuid>/VM-DIRECTORY/VM_Name-000001.vmdk) to destination (/vmfs/volumes<datastore-uuid>/VM-DIRECTORY/VM_Name.vmdk): I/O error. An error occurred while consolidating disks: The operation failed. Consolidation failed for disk node 'scsi0:0': The operation failed. Failed to get copy progress while consolidating disks from '/vmfs/volumes/<datastore-uuid>/VM-DIRECTORY/VM_Name-000001.vmdk' to '/vmfs/volumes<datastore-uuid>/VM-DIRECTORY/VM_Name.vmdk'.

Cause

The disk consolidation failure is caused due to underlying storage issue.

IO errors can be seen in /var/run/log/vmkernel.log:

YYYY-MM-DDTHH:MM:SSZ cpu43:3843113)WARNING: SVM: 2869: scsi0:0 Failed SVMFDSIoctlMoveData: I/O error
YYYY-MM-DDTHH:MM:SSZ cpu45:3842709)WARNING: SVM: 2990: scsi0:0 copyBitmapInfo already cleaned up. Failing request to set copyBitmap
YYYY-MM-DDTHH:MM:SSZ cpu17:3843115)WARNING: SVM: 2869: scsi0:0 Failed SVMFDSIoctlMoveData: I/O error
YYYY-MM-DDTHH:MM:SSZ cpu35:3842709)WARNING: SVM: 2990: scsi0:0 copyBitmapInfo already cleaned up. Failing request to set copyBitmap
YYYY-MM-DDTHH:MM:SSZ cpu9:3843117)WARNING: SVM: 2869: scsi0:0 Failed SVMFDSIoctlMoveData: I/O error

Resolution

Engage the storage vendor for further investigation on the I/O errors.

If needed, engage Broadcom Storage Team. Refer Creating and managing Broadcom support cases