Acronis Cyber Backup 12.5

Technical Questions & Known Solutions - Backup Functionality

Acronis Cyber Protect Cloud, Acronis Cyber Backup: Activity fails with "The specified file does not exist"
Acronis Backup: Corrupted MFT, Run List, Block Bitmap or Index forces Sector-by-Sector backup mode
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Backup or another activity fails with "The archive is invalid or its type is unsupported"
Acronis software: *.OST-file is not backed up
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Backup fails with "Unknown status"
Acronis Cyber Protect, Acronis Cyber Backup: "Access to the cloud file is denied" warning when backing up OneDrive folder
Acronis Cyber Protect: Backup of Linux machine fails with "Common I/O error" if partition table is damaged
Acronis products: backup to cloud fails with "Failed to resolve hostname"
Acronis Cyber Backup: backup completes with warning "Link target was not backed up" or "The file is out of backup scope"
Acronis Cyber Backup: Replication fails with "Cannot use this type of backup archive"
Acronis Cyber Backup 12.5: after disabling all but TLSv1.2 protocols SQL application-aware backup fails with warning "Failed to collect the metadata of the SQL Server databases selected for backup."
"Backup is corrupted" alert
Acronis Cyber Backup 12.5: full backup is created on the first day of each month with "Weekly full, Daily incremental" scheme
Acronis Cyber Backup: Backup fails with "The driver detected a controller error on device"
Acronis Backup for VMware: Collecting Logs for Cloud Backup Issues
Acronis Cyber Backup 12.5: Backup to tape fails with "Data are absent in cache"
Acronis Cyber Protect Cloud: "Logging on with the specified credentials is impossible, probably because the account does not exist or the password is invalid" error
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Backup fails with Windows error: (0x80070522) A required privilege is not held by the client
Acronis Cyber Protect: Backup fails with "Windows error: (0x800705B4) This operation returned because the timeout period expired"
Acronis Cyber Protect, Acronis Cyber Backup: Operation fails with "Windows error: (0x8007051F) There are currently no logon servers available to service the logon request"
Acronis Cyber Backup: Alert "The running backup has not shown any progress for some time and may be frozen" appears during backup of virtual environment
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Hyper-V virtual machine backup fails with "Failed to obtain associated virtual system settings"
Acronis Cyber Backup: activity fails with "No volumes have been found while processing the 'Fixed Volumes' template"
Acronis Cyber Backup: Disk Backup with Acronis VSS Provider Fails on Windows SBS and domain controllers
Acronis Cyber Protect 15, Acronis Cyber Backup 12.5: backup to Cloud Storage fails with "The credentials for the cloud storage are incorrect" if 2FA is enabled
Acronis Cyber Backup, Acronis Cyber Protect: backup or replication fails with "Network operation failed" error
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Backup fails with "The activity has failed because the machine has been shut down unexpectedly"
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Backup Fails with "All items specified for backup do not exist", "None of the items selected for backup were found", or "The following selected disks are not found"
Acronis Cyber Backup, Acronis Cyber Protect: Activity fails with "Windows error: (0x800704C8) The requested operation cannot be performed on a file with a user-mapped section open"
Acronis Cyber Backup, Acronis Cyber Protect: Backup fails with "POR: Element 'Name' cannot be found”
Acronis Cyber Backup: incorrect drive letters in virtual machine backup
Acronis Cyber Backup 12.5: "This machine cannot be selected directly" warning in Linux-based bootable media
Acronis Cyber Backup 12.5: SQL database backup fails with "An invalid file has been detected"
Acronis Cyber Protect Cloud, Acronis Cyber Backup: backup fails with "Could not connect"
Acronis Cyber Protect Cloud, Acronis Cyber Backup 12.5: Backup fails with AGENT_CORE error "A socket operation was attempted to an unreachable network"
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Backup of ESXi virtual machines fails with "You do not have access rights to this file"
Acronis Cyber Backup 12.5: Troubleshooting mailbox backup failure
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Hyper-V Virtual Machines are Unavailable during Snapshot Creation
Acronis Cyber Protect: Backup fails with "Illegal operation attempted on a registry key that has been marked for deletion"
Acronis Cyber Backup 12.5: next backup status turns to 'Not scheduled" after changing "Upon time since last backup"
Acronis Cyber Protect Cloud, Acronis Cyber Backup: backup fails with "Failed to establish connection with cloud storage. This may happen due to a blocked port or other network issue."
Acronis Cyber Protect 15, Cyber Backup 12.5: Backup to tape fails with "The storage media is write protected" if tape is LTFS-formatted
Acronis Backup Software Creates Large Incremental or Differential Backup Archives
Acronis Cyber Backup 12.5: Backup of Hyper-V 2019 machine finishes with warning 'Catastrophic failure'
Acronis Cyber Protect: error "Network disconnected" when adding SFTP as backup location
Acronis Cyber Backup: backup fails with "The password for the protected backup is incorrect"
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Quiesced snapshot creation fails for Windows Server 2019 VMs on ESXi 6.5 or 6.7
Acronis Cyber Protect 15, Acronis Cyber Backup 12.5: Apple RAID is not supported for disk/partition backup
Acronis Cyber Backup: "Error: Trailing spaces in the path" when backing up SQL database
Acronis Cyber Backup 12.5: backups to an encrypted managed vault fail with "Access to object 'Storage node' is denied" after upgrade from v.11.5

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