Symptoms
Performing a snapshot consolidation in ESXi 5.5.x fails. When attempting to consolidate snapshots using the vSphere Client, you see the error:Consolidate Disks message: The virtual machine has exceeded the maximum downtime of 12 seconds for disk consolidation
Purpose
To resolve the maximum consolidate retries was exceeded for scsix:x error on ESXi 5.5.x, turn off snapshot consolidation enhancement.
Cause
This message is reported in ESXi 5.5.x if the virtual machine is powered on and the asynchronous consolidation fails after 10 iterations. An additional iteration is performed if the estimated stun time is over 12 seconds. This occurs when the virtual machine generates data faster than the consolidated rate.
Resolution
To resolve this issue, turn off the snapshots consolidation enhancement in ESXi 5.5, by setting the snapshot.asyncConsolidate.forceSync to TRUE:Note: If the parameter is set to true, the virtual machine is stunned for long time to perform the snapshot consolidation, and it may not respond to ping during the consolidation. Shut down the virtual machine. Right-click the virtual machine and click Edit settings. Click the Options tab. Under Advanced, right-click General, click Configuration Parameters and then click Add Row. In the left pane, add this parameter:snapshot.asyncConsolidate.forceSync In the right pane, add this value:TRUE Click OK to save the changes. Power on the virtual machine. To set the parameter snapshot.asyncConsolidate.forceSync to TRUE without shutting down the virtual machine, run this PowerCLI command:get-vm virtual_machine_name | New-AdvancedSetting -Name snapshot.asyncConsolidate.forceSync -Value TRUE -Confirm:$FalseAlternatively, you can use one of these workarounds: When the virtual machine is under heavy IO load, retry snapshot consolidation at a time when the virtual machine is issuing less IO. Increase the time limit on the snapshots consolidation by changing the snapshot.maxConsolidateTime parameter in the virtual machine.
Related Information
VMware ESXi 5.5.x および ESXi 6.0.x でスナップショットの統合が次のエラーで失敗する：scsix:x の統合の最大試行回数を超えましたESXi 中的 “scsix:x 已超过最大整合重试次数 (maximum consolidate retries was exceeded for scsix:x)” 错误How to increase the time limit on snapshot consolidation
