Re: Backup job failing - Error 3 (One of the parameters was invalid)

did you ever find a resolution to this issue? it appears i am now having the same issue. everything was working a day or two ago, after migrating in some new servers now VDP wont back them up.

Getting a similar error

Info <16041>: VDDK:VixDiskLib: VixDiskLib_Connect: Failed to allocate connection. Error 3 (One of the parameters was invalid) at 3914
Info <16041>: VDDK:VixDiskLib: VixDiskLib_PrepareForAccess: Failed to establish connection. Error 3 (One of the parameters was invalid) at 3978.
Warning <0000>: [IMG0008] VixDiskLib_PrepareForAccess returned fault(3), (3) One of the parameters was invalid

then

Info <16041>: VDDK:VixDiskLib: VixDiskLib_Connect: Failed to allocate connection. Error 3 (One of the parameters was invalid) at 3914.
Info <16041>: VDDK:VixDiskLib: VixDiskLib_Cleanup: Error occured during establishing connection. Error 3 (One of the parameters was invalid) at 3819.
Warning <0000>: [IMG0008] VixDiskLib_Cleanup() returned code(3),'(3) One of the parameters was invalid', 0 VMx require cleanup

Then towards the end of the log this

Info <16041>: VDDK:VixDiskLib: VixDiskLib_Connect: Failed to allocate connection. Error 3 (One of the parameters was invalid) at 3914.
Error <0000>: [IMG0008] VixDiskLib_ConnectEx returned 3 (3) One of the parameters was invalid
Info <9772>: Starting graceful (staged) termination, VixDiskLib_Open attempt to connect to virtual disk failed (wrap-up stage)
Error <0000>: [IMG0008] VixDiskLib_Connect(host:[VC FQDN] account:[admin account name] dc:/[VC Datacenter name]&dsName: vmxpath:[datastore name] virtualserver1/virtualserver1.vmx port:443vmmoref:vm-217741) detected a problem, returned (3) One of the parameters was invalid
Info <0000>: getActiveTaskCount prior to snapshot removal: CreateSnapshot=3 RemoveSnapshot=0 ImageTask=0 otherTask=4
Info <14642>: Deleting the snapshot 'VDP-14394866627387bf477b03254454639b27b9076b8cffe2401b', moref 'snapshot-218502'
Info <14631>: Snapshot (snapshot-218502) removal for VM '[datastore name] virtualserver1/virtualserver1.vmx' task still in progress, sleep for 2 sec
Info <14630>: Snapshot (snapshot-218502) removal for VM '[datastore name] virtualserver1/virtualserver1.vmx' task was canceled.
Info <18649>: Removal of snapshot 'VDP-14394866627387bf477b03254454639b27b9076b8cffe2401b' is not complete, moref 'snapshot-218502'.
Info <0000>: vcbimage_progress::terminate
Warning <40361>: VixDiskLib vMotion reservation release requested for prior reservation
Info <16041>: VDDK:VixDiskLib: VixDiskLib_EndAccess: Disk access completed.

the details may be a bit different but seems to have the same common errors.