v10.5.1 Release Notes

Release Date: 22 December 2021

New Features

VMware vSphere 7.0.3 Support

NAKIVO Backup & Replication now offers full support for VMware vSphere 7.0.3.

Fixed Apache Log4j Vulnerabilities

Addressed Apache Log4j library vulnerability issues CVE-2021-44228 and CVE-2021-45046.

QTS 5.0 Support

NAKIVO Backup & Replication now supports QTS 5.0 OS.

Synology DSM 7 Support

NAKIVO Backup & Replication now supports Synology DSM 7.0.


Fixed some minor product usability issues. 


NAKIVO Backup & Replication drops support for WD MyCloud v3 starting from v10.6.

Known Issues

Product Usability

  • You may be unable to update from NAKIVO Backup & Replication v7.2 and older due to missing information in old licenses. Please contact support@nakivo.com to obtain an updated license.

  • It is possible to downgrade the Western Digital NAS package to an older version, which can lead to lost product configuration.

  • When selecting all NAKIVO Backup & Replication users to apply a bulk action, only the users displayed on the screen are selected.

  • When updating NAKIVO Backup & Replication to v10.0, all logos will be updated with the NAKIVO default logo, including customized logos.

  • NAKIVO Backup & Replication may not display the up-to-date size of a SaaS Backup Repository immediately.

Platform Limitations


  • If a Transporter is installed on Windows Server 2008R2 or later, it is recommended that you set SAN Policy to OfflineShared or OfflineAll.

  • File recovery may fail if the HDD’s virtual device node is SATA and the Transporter processing the job is installed on Windows.

  • Connection with the Transporter on a Windows 10 physical machine will be lost when it goes into sleep mode or restarts after installing system updates.

  • Microsoft Windows 10 Pro does not support VSS quiescing on Microsoft Hyper-V 2012 R2.

  • If an NFS share Backup Repository is created on Windows OS and has Transporter installed on a Windows OS assigned to it, this repository may become inaccessible after some time. This occurs due to the Windows-specific share permission configuration issue.


  • Onboard Transporters installed on NAS devices with ARM CPU do not support VMware infrastructures.

  • SAN transport mode doesn’t work when NAKIVO Backup & Replication is running on a QNAP NAS.

  • Transporters running on FreeNAS devices are not supported for backup and recovery of VMware vSphere VMs.

  • File and object recovery from a FreeNAS\TrueNAS disk by downloading and sending them via email is not supported without the use of proxy Transporter.


  • VMware vSphere Transporter appliance cannot be deployed to ESXi older than 5.1.

  • VMware VM independent disks are not supported.

  • For successful replication and recovery to an NFS datastore, thin-provisioned disks should be created.

  • Free ESXi host v7.0.2 with SSH connection enabled may not be discoverable due to unsupported SSH server algorithms. For details, refer to Free ESXi Host Cannot Be Discovered.


  • CBT Driver for Microsoft Hyper-V 2012(R2) is not available.

  • Hyper-V on Windows Nano Server cannot be added to NAKIVO Backup & Replication Inventory.

  • If the same Microsoft Hyper-V VM is processed by multiple jobs simultaneously, some of the jobs may fail to create a VM checkpoint.

  • Issues with Integration Services for Ubuntu 12.04 Server (x64) and SLES 11 SP3/SP4 (x64) prevent connection to source VMs running on Hyper-V.

  • Recovery jobs for Microsoft Hyper-V do not allow creating VMs with identical names.


  • Nutanix volume groups are not supported by NAKIVO Backup & Replication.
  • Application aware mode is not supported for Windows Server 2022 running on Nutanix.


  • Application-aware processing for Amazon EC2 may freeze when using domain credentials.

  • The Failback EC2 Instances action with the Original Location option selected turns off the source instance instead of terminating it.

  • Backup of encrypted EBS volumes may be unavailable for certain Amazon EC2 Transporter instance types.

  • Replica AMIs and recovered Amazon EC2 instances have "Platform" attribute set to "Other Linux" due to AWS API limitations.

  • Bandwidth Throttling cannot be applied to instance backups to local Amazon EC2 Regions with a single Transporter.

  • AWS accounts in China (Beijing and Ningxia regions) and Asia-Pacific (Osaka-local) are not supported.

Microsoft 365

  • Backup and recovery of Exchange Online guest mailboxes, public folder mailboxes, online archive folders, calendars added from Directory, read-only calendars, distribution groups, resource mailboxes, event messages (that is, "#microsoft.graph.eventMessageRequest", "#microsoft.graph.eventMessage"), security groups, and outbox folders are not supported.

  • Exchange Online contact and calendar items can only be recovered to the original mailbox.

  • Backup and recovery of OneDrive for Business items such as "Shared" folder, "Recent" folder, "Recycle bin", Internal OneDrives or folders are not supported.

  • Backup and recovery of SharePoint Online items such as internal folders, internal document libraries, internal lists, and internal list items are not supported.

  • Backup and recovery of SharePoint Online items such as MicroFeed lists, picture library, site assets library, and site pages library are not supported.

  • Backup and recovery of SharePoint Online external users and version history are not supported.
  • Recovery of SharePoint Online lists containing lookup data to a different site is not supported.

  • The lookup data of SharePoint Online lists displayed in the recovery wizard is inaccurate, and it can’t be recovered.

  • Recovery of SharePoint Online lists containing special characters/symbols is not supported.

  • Backup and recovery of Microsoft 365 Groups and Teams are not supported.

  • ARMv7-based NAS devices and FreeNAS are not supported for SaaS Backup Repository creation.

  • Backup copy jobs are not supported for Microsoft 365.

  • Recovery is not supported for files and folders that have names exceeding 128 characters and for full file paths exceeding 260 characters. Note that URL encoded characters count as 3 characters for the purpose of reaching these limits.

Amazon S3 and Wasabi

  • Features that use iSCSI (that is, Flash VM Boot, screenshot verification, file-level recovery, recovery to source) may not work with Amazon S3 and Wasabi Backup Repositories due to the networking requirements limitation.


  • Active Directory integration with NAKIVO Backup & Replication is not supported for guest user accounts.

  • HPE StoreOnce Catalyst integration is not supported on devices with ARM7 and ARM64 (AArch64) processors.


  • With backup copy jobs, the value of the job speed on the dashboard can differ from the value provided via the Bandwidth Throttling settings.

  • When restarting a recovered VM with dynamic disks mounted to a Transporter, dynamic disks may not be recognized.

  • VMs that were recovered from encrypted source VMs with NVRAM settings modified may fail to boot.

  • Authentication to Active Directory using NTLMv2 cannot be performed.

  • Deployment of source Transporter and source VM from the same Windows VM template may cause backup corruption in HotAdd mode.

  • When refreshing an Amazon S3 Backup Repository with immutable data, an alarm notifying about corrupted data in the repository may not be displayed in the product.

Feature Limitations

NAKIVO Backup & Replication features require certain conditions to function properly. For more details about feature requirements, refer to the corresponding articles in the User Guide. Below is a list of feature limitations. 

Backup and Replication

  • VMware VM RDM disks are supported only in virtual compatibility mode.

  • Backed-up RDM disks in virtual compatibility mode are recovered as thin disks.

  • Replicas of VMs with RDM disks in virtual compatibility mode are created with thin disks.

  • First Class Disks (FCDs) cannot be backed up if they are not attached to any VMs.

  • VSS quiescing is not supported for encrypted VMs.

  • VSS quiescing is not available for Microsoft Windows 7 on some platforms.

  • LVM logical volumes in a thin pool are not supported for physical backup jobs.

  • An encrypted Amazon EC2 instance (default key) can not be replicated between accounts.

  • Replication across different AWS account types is not supported.

  • Cluster Shared Volumes (CSV) are not supported for backup of physical systems.

  • Windows failover clusters are not supported for backup of physical systems.

  • Backup and replication of Microsoft Hyper-V VMs with shared drives are not supported.

  • Linux Transporter should be used for replicating/backing up VMs with SATA disks.

  • When copying a compressed backup between a Backup Repository and tape device, different compression levels may cause very slow transfer speeds. For more information, see this article.

Exclude Swap Files and Partitions

  • Windows dynamic disks are not supported.

  • Physical machine backup is not supported.

  • Linux swap files are currently not excluded. Only Linux swap partitions are supported.

vSphere HotAdd

  • If HotAdd cannot be enabled for at least one disk of a source VM (even if the disk is deselected in the job), HotAdd may be unavailable for all disks of the VM.

  • HotAdd is not available for VMs that contain IDE disks.

  • VMware vSphere HotAdd is not supported if the VA with NAKIVO Backup & Replication has the same BIOS UUID as the source VM.

Encrypted Repository

  • Encrypted repositories are not supported with RHEL/SLES due to missing required packages.

Screenshot Verification

  • NFS datastores cannot be used as target datastores for screenshot verification.

Log Truncation

  • Application log truncation is not available on ESXi 4.1.

Pre and Post Job Actions

  • PowerShell scripts are not supported for standalone jobs. All Windows scripts are run by cmd.exe

  • Custom pre/post-job scripts are unavailable for Windows VMs when Integration Services are used on Hyper-V 2016 and above.

Flash VM Boot

  • ESX/ESXi hosts enable binding the software iSCSI adapter (HBA) to VM Kernel network(s). If such binding is configured for an ESX/ESXi host that is used as a target for Flash VM Boot, the connectivity between the host and the Transporter might not be available at the iSCSI layer.

  • If an iSCSI binding is configured for a host to be used as a target for Flash VM Boot, verify or configure the connectivity at the iSCSI layer (either by selecting a host without binding, removing binding on a host, or adding a dedicated VM Kernel network to the binding that allows the connectivity).

  • NFS datastores cannot be used as target datastores for Flash VM Boot.

  • VM templates are not supported for the Flash VM Boot.

File-Level Recovery

  • File recovery from Linux LVM volumes is available only when the Transporter assigned to the Backup Repository is installed on a Linux OS.

  • File recovery is not supported for independent, encrypted, and RAID disks.

  • File recovery from LVM volumes is not available when the Transporter that is assigned to a Backup Repository is installed on a NAS such as Synology, QNAP, Western Digital, or ASUSTOR.

  • File recovery from systems that use Windows-only features, such as Windows Data Deduplication or DFS, is available only when the Transporter assigned to a Backup Repository is installed on a Windows machine with these features enabled.

  • File recovery is not supported for source VMs on RAID disks. 

  • File recovery from Windows Dynamic Disks is not supported for the following platforms:


    • Red Hat Enterprise Linux 7.x

  • Recovering files to an NFS share fails if the NFS server is configured as NFSv4 only, and the Transporter has earlier NFS protocol versions.

  • File recovery may skip empty folders from the NTFS file system in certain configurations.

  • File recovery fails if the HDD's virtual device node is SATA, and the Transporter processing the job is installed on Windows

  • File recovery for thin provisioned logical volumes is not supported.

  • File recovery may be unavailable on some Linux configurations with XFS or BTRFS file systems.

  • File recovery is not possible if a backup contains an incomplete set of disks that are a part of the spanned volume/dynamic disks/LVM/RAID software or any other disk structures.

  • File recovery may fail if the Windows machine to which you wish to recover items has over 20 disk volumes (with and without drive letters).

  • File recovery may fail to display the contents of disks containing over 1 million files.

  • Symlinks in Windows and Linux OS, as well as encrypted files, are not supported for file recovery.

  • VM templates are not supported for file and object recovery.

  • Recovery to source for Windows is not possible if the file path, folder path, file name length, or folder name length exceeds 256 characters.

Object-Level Recovery

  • Active Directory printers are skipped during the import of recovered items.

  • Replica/recovered VM disks are always created as lazy zeroed if the source VM has both lazy and eager zeroed disks.

  • Microsoft Exchange emails that were forwarded to a recipient as attachments cannot be recovered from the mailbox.

  • Microsoft Exchange public folders are not supported for granular recovery.

  • Microsoft SQL Server object recovery does not work with databases that have memory-optimized data filegroup containers.

  • Microsoft SQL Server object recovery cannot recover a system-versioned table if another table with the same name already exists.

  • Recovery of mailboxes is not supported for Microsoft Exchange object recovery jobs.

  • Birthday events may not be recovered via an object recovery job for Microsoft Exchange even if the job run was successful.

  • Microsoft Exchange contact and calendar items are not supported for downloading to a browser or forwarding via email (Expert Mode).

  • Recovery of DNS entries is not supported for Active Directory.

Cross-Platform Recovery

  • Cross-platform recovery may not work if a VM or physical machine includes a special OS kernel.

Site Recovery

  • PowerShell scripts are not supported for Site Recovery actions. All Windows scripts are run by cmd.exe.

Direct Connect

  • Recovery to source, object recovery, universal object recovery, backup export, Multi-Channel Recovery, Re-IP, log truncation, tape support, and Site Recovery are not supported with Direct Connect.

  • vSphere tags support is not available via Direct Connect.

Users And Roles

  • If role-based access control (RBAC) is not available for the currently installed NAKIVO Backup & Replication license, creating additional users and roles is not possible.

Backup Immutability

  • When refreshing an Amazon S3 Backup Repository with immutable data, an alarm notifying about corrupted data in the repository may not be displayed in the product.

  • Backup Immutability is not supported for encrypted Backup Repositories.


  • The XFS filesystem is not supported for recovery to source.

  • Bandwidth Throttling is not available for recovery from tape jobs.

  • For SaaS Backup Repositories, recovery point statistics are returned only if the recovery point version is higher than v10.3.