KB ID 0001577
Problem
EVERY VMware Job in Veeam Backup and Recovery failed with the following error, (for every Guest VM);
Processing SERVER-NAME Error: Failed to open VDDK disk [[DATASTORE-NAME] SERVER-NAME/SERVER-NAME.vmdk] ( is read-only mode – [true] ) Logon attempt with parameters [VC/ESX: [ESXi-SERVER-NAME.DOMAIN-NAME.COM];Port: 443;Login: [administrator@.vsphere.local];VMX Spec: [moref=vm-231];Snapshot mor: [snapshot-288575];Transports: [san];Read Only: [true]] failed because of the following errors: @Failed to open disk for read. Failed to upload disk. Agent failed to process method {DataTransfer.SyncDisk}.
Solution
The fact that I had upgraded the vCenter from 6.5 to 6.7 the same day is probably a clue! reconnecting and rescanning the vCenter did NOT resolve the problem.
Fix: Update Veeam Backup and Recovery, (In my case to 9.5 update 4b.)
- Stop and disable the Veeam Services.
- Reboot the server, (or go into task manager and kill and running Veeam processes)
- Mount the install ISO and carry out the upgrade.
- Reboot.
Problem solved!
Related Articles, References, Credits, or External Links
Veeam Backup and Recovery Download
Veeam Availability Suite Download
Veeam Backup For Office 365 Download
Hi, I have to run replications of a VM (on a SAN) to a NFS datastore on a NAS. I use Veeam V7. After a few successful replication, I started to get errors like mentionnig “failed to open vddk disk” and “read-only mode” Could it be linked to the proxy transport mode configuration that’s been set to “Virtual Appliance” ? What would be the best choice for that kind of storage (NAS) ? Thanks !
I’m confused, you can only replicate to a hyper visor? do you mean backup? And Veeam version 7 os VERY old you should update to 9.5 update 4.
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