[Review]: Veeam Backup & Replication 9.5 Update 3a

What’s New in Veeam Backup & Replication 9.5 Update 3a

Veeam has release update for Backup & Replication 9.5 regarding to support vSphere 6.7, there is also other new platform support:

  • VMware vSphere 6.7. Includes the new HTML5 version of vSphere Web Client plug-in for Veeam Backup & Replication, and asynchronous NBD/NBDSSL support for improved read performance of network transport mode with ESXi 6.7.
  • VMware vSphere 6.5 U2. This update introduces preliminary support by addressing all outstanding U2-specific compatibility issues that can be managed from the Veeam side. However, there is a major regression in ESXi 6.5 U2 code that makes the vSphere API fail randomly during high host CPU load periods, consequently impacting a variety of Veeam Backup & Replication functionality. VMware is currently troubleshooting this bug, and fixing one will most likely require the new ESXi 6.5 U2 build issued.
  • VMware vCloud Director 9.1. Update 3a provides full compatibility for all existing vCloud Director integration functionality.
  • VMware Cloud on AWS version 1.3 support and preliminary out-of-the-box compatibility with future VMC updates through removal of the API version match requirement. Additionally, support for processing virtual machines with dynamic disks has been added.
  • Microsoft Windows 10 April 2018 Update. Includes support as guest virtual machines and for installation of Veeam Backup & Replication and all of its components.
  • Microsoft Windows Server 1803. Update 3a provides Windows Server 1803 support as guest virtual machines, for installation of Veeam Backup & Replication remote components, and as a domain controller for Veeam Explorer™ for Microsoft Active Directory.
  • Microsoft Windows Server Hyper-V 1803. Update 3a provides Hyper-V 1803 support as a hypervisor host, including support for processing VMs with virtual hardware version 8.3.
  • Microsoft System Center Virtual Machine Manager 1801. Update 3a adds SCVMM 1801 support as a source for Microsoft Hyper-V VMs backup jobs.

New Features and Enhancements

VMware vSphere

  • Performance of Direct Storage Access (DirectSAN) and Virtual Appliance (Hot Add) transport modes has been improved for backup infrastructure configurations through optimizing system memory interaction.

Microsoft Azure

  • Added support for Direct Restore to Microsoft Azure for environments with ExpressRoute or site-to-site VPN connectivity to Azure, in which case proxy and helper appliances may have private IP addresses only. To enable, create AzurePreferPrivateIpAddressesForProxyandLinuxAppliance (DWORD, 1) registry value under HKLM\SOFTWARE\Veeam\Veeam Backup and Replication key on the backup server.

Linux File Level Recovery

  • Added support for Linux SUID and SGID preservation to “Copy To” operation.
  • Added support for Btrfs volumes located on an LVM volume.

Primary Storage Integrations

  • Installing Universal Storage API plug-ins on each backup console (in addition to the backup server) is no longer required.
  • Storage snapshot-only vCloud Director backup jobs are now supported for all storage integrations which support storage snapshot-only jobs. Previously, it was supported for NetApp only.
  • Cisco HyperFlex integration will no longer delete the base sentinel snapshot during each job run to improve processing performance and reduce storage load.


  • Improved performance of enumeration in File to Tape jobs with very large number of files.

Veeam Cloud & Service Provider partners

Veeam Backup & Replication 9.5 Update 3a also includes enhancements and bug fixes for service providers offering Veeam Cloud Connect services, and managing backup servers with Veeam Availability Console.

Resolved Issues

Veeam Backup & Replication Update 3a also resolves the following common support issues:

  • User interface performance has been improved for large environments, including faster VM search and lower CPU consumption while browsing through job sessions history.
  • Restores through Direct NFS transport should no longer produce corrupted VMDKs on storage devices with advanced NFS server implementations.
  • VeeamZIP™ operations should no longer consume a license.
  • Backup copy job should no longer trigger health checks outside of the scheduled start time when GFS retention is in use, and will behave more reliably in a few corner cases.
  • Incremental backup runs should no longer keep setting ctkEnabled VM setting to “true”, resulting in unwanted events logged by vCenter Server.
  • SATA X:7 disks should no longer be skipped with backup jobs by default.
  • Windows file level recovery (FLR) should now process large numbers of NTFS reparse points faster and more reliably.
  • Linux FLR should now correctly process directories with . and \ symbols in their names. In addition, encountering a named pipe object should no longer cause FLR to hang.
  • Direct Restore to Microsoft Azure should now process Linux machines with EFI boot more reliably.
  • Veeam Agent for Microsoft Windows’ jobs should no longer fail when the backup server uses custom certificate.
  • Veeam Explorer for Storage Snapshots now supports VMs located on LUNs larger than 16TB.
  • An HPE 3PAR integration should now handle large number of concurrent jobs more reliably, thanks to multiple improvements implemented based on support cases.
  • An HPE StoreOnce Catalyst SDK host process will now be restarted automatically when a Catalyst API call hangs, preventing Veeam jobs from hanging as a result.
  • IBM SVC integration should no longer fail at collecting iSCSI adapters.

How Can Install Update 3a?

Any customer, who are running the below version can install new update:


After installation build number will be Also for upgrading from older versions, version 9.5 ISO image should be downloaded.

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[Review]: Veeam Backup & Replication Best Practices – 9.5 Update

[Review]: Veeam BR – Storage-level Corruption Guard

[Update]: Veeam Availability Suite 9.5 Update 3

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Davoud Teimouri

Professional blogger, vExpert 2015/2016/2017/2018/2019/2020/2021/2022/2023, vExpert NSX, vExpert PRO, vExpert Security, vExpert EUC, VCA, MCITP. This blog is started with simple posts and now, it has large following readers.

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