After installing Veeam Backup & Replication 9.5 Update 3a, the backup duration may be significantly increased for jobs using the Virtual Appliance (HodAdd) transport mode. Other transport modes (NBD/NBDSSL, Direct SAN, Direct NFS) are not affected.
This is a known issue affecting VMware VDDK (Virtual Disk Development Kit) versions 6.5.2, 6.5.3 and 6.7. Please refer to VMware KB55418 article for more information.
A hotfix for Veeam Backup & Replication 9.5 Update 3a (build 126.96.36.1992) is available to switch to using unaffected VDDK versions. To install the hotfix:
- Stop all Veeam jobs and Veeam services
- Copy these files and folders to an alternate location from the backup server and all backup proxies to have a backup:
C:\Program Files (x86)\Veeam\Backup Transport\x64\vddk_6_5 C:\Program Files (x86)\Veeam\Backup Transport\x64\vddk_6_7 C:\Program Files (x86)\Veeam\Backup Transport\x64\VeeamAgent.exe
- Replace the files on the backup server and all backup proxies listed in the previous step with those found in the hotfix package
- Start all Veeam services
Please be aware that we’re making changes which will restrict access to product updates for users without an active contract.