Knowledge Base

Symptoms You back up Hyper-V virtual machines using Agent for Hyper-V. Agentless backup fails with error: Disk '<...>.vhdx' is not found. Example of full error log: click to expand | error 0x95000d: Failed to perform the requested operation.  | line: 0xd1ab7fa1e56ec835  | file: e:\215\enterprise\disk_manager\daapi1\...

Symptoms Backup of a Hyper-V virtual machine fails with the following error: Failed to obtain associated virtual system settings Example of a full log: click to expand | error 0x728012: Failed to prepare for backup. | line: 0x28314c961de7d52e | file: k:\3917\enterprise\migration\impl\manager_vmbackup.cpp:2111 | function:...

This article provides instructions for running a pre-backup command on a virtual machine when performing agentless backup Introduction This article describes how to prepare and run Pre-Post script inside a guest VM when performing agentless backup using Acronis Agent for Hyper-V. Script is executed using Powershell Direct....

Symptoms Backup fails with "Selected network files or network folders were not found: <NETWORK PATH>" Activity details: Error 0x1350016: TOL: Failed to execute the command. Backup plan <NAME> | line: 0x8d165e86fb81959b | file: e:\306\enterprise\common\tol\command\command.cpp:461 | function: Tol::`anonymous-namespace...

Symptoms Backup fails with the following message: | error 0x10c469: VSS writer 'SqlServerWriter' with class ID 'A65FAA63-5EA8-4EBC-9DBD-A0C4DB26912A' has failed to process the snapshot. To troubleshoot VSS issues, download and run Acronis VSS Doctor available at https://www.acronis.com/en-us/personal/vss-diagnostic-free-tool/ |...

Scenario You want to use VM replication in VMware environment. This article explains how to allow both source and target hosts to be discovered by Acronis Cyber Protect Cloud or Acronis Cyber Backup. Solution First, you need to configure Acronis Agents for VMware (Windows or Virtual Appliances) which can discover both source and target ESXi hosts...

While using the VSS backup option to back up complex applications, you may encounter issues with creating volume snapshot/shadow copy. This article provides instructions on how to troubleshoot and resolve such issues. Follow these steps to troubleshoot issues with VSS backup in Acronis Cyber Backup (Acronis Cyber Backup & Recovery): Get...

Symptoms You create a backup using Version 12 format. An operation with archive (e.g. applying retention rules) fails with the error message Failed to lock the file Example of full error log: click to expand   | error 0xa100d9: Failed to delete the backups.  | line: 0xb320396adfe3d02  | file: e:/21/enterprise/mms/managers/...

Scenario We have recently identified a security issue within Agent for Linux installations that may potentially allow unprivileged users to access Agent logs and backup data. We have identified that these files and directories have excessive read permissions (allowing users who are not functioning as backup operators read the files) and recommend...

Symptoms In Acronis Cyber Backup, you are specifying or updating credentials for Microsoft Exchange. You get this error: | error 0x15d0046: The format of name 'admin' is not supported. | function: AppBackup::ParseUserLogonName or Error code: 1905 Module: 349 LineInfo: 0x07861B1E784838A4 Fields: {"$file":"e:\\578\\...