Snapshot

This article describes how to back up a virtual machine using Acronis True Image Echo and VMware Consolidated Backup

Acronis True Image errors out with "Unable to create volume snapshot" when backing up volumes of over 4 TB in size in Linux

You are either trying to back up a free VMware ESXi using Acronis Agent for ESX/ESXi or you have not added a license to your paid version of VMware ESX/ESXi

Try disabling write caching for the USB drive to solve the issue

Instructions on how to enable Microsoft native VSS instead of the default Acronis VSS in Acronis Backup & Recovery 10

Make sure the backup is run under administrator or that you back up without using VSS

Recovery points in Acronis vmProtect 7

Close all running programs, restart the product and try to run the backup plan again

Please contact Acronis Support to get a special build with the timeout increased

Update to the latest build or turn on snapshotting for file backup

Description of the Acronis SnapAPI module

Pre/post commands are executed before or after the whole backup process. Before/after data capture commands are executed during the backup process, right before and immediately after the snapshot

Instructions on how to enable Microsoft native VSS instead of the default Acronis VSS in Acronis Backup

You are running a single-pass backup of SQL instances that fails with the error. To fix this issue, re-register the VSS service

Acronis VSS provider is used to initiate creation of VSS snapshot, but MS VSS service is actually used

If there is not enough storage space to create the temporary snapshot file, the backup operation will fail with an error message similar to the following one:

Not enough storage is available to process this command

This article describes what this temporary file is and how to modify its size. For detailed description of the snapshot process, see SnapAPI.

This article describes what to do if after a backup failure the backed up virtual disks are left attached to Acronis Virtual Appliance

Agentless backup of Hyper-V VMs with pass-through disks finishes with a warning:

Cannot take checkpoint for 'MachineName' because one or more pass-through disks are attached.

Backup fails with "Cannot continue backup. There is not enough free space on the drive where the snapshot cache file is located.". You can solve this issue by moving the destination for temporary file of snapshot.

You are backing up a virtual machine with Windows Server 2019 on ESXi 6.5 or 6.7 using Agent for VMware (Windows) or Virtual Appliance,
Agentless backup finishes with warning

Creating a crash-consistent snapshot of virtual machine because the creation of its application-consistent snapshot has failed. An error occurred while saving the snapshot: Failed to quiesce the virtual machine

Symptoms

Backup of a Linux system with kernel 4.18 fails with the following error:

Failed to create a snapshot

Increase the storage size or change the storage location of the volume snapshot

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