@sumansaha
Hello Team,
The issue has resolved after applying xe-toolstack-restart.
Thanks.

@sumansaha In summary , I've deleted Orphan VDIs from Dashboard->health . But in deletion, I've maintained the sequence of their age.It has taken 6 hours, though that depends on the VM size.

@olivierlambert That works. XCP-NG Rocks.

@sumansaha
Hello Team,
The issue has resolved after applying xe-toolstack-restart.
Thanks.

@sumansaha As the issue is not only with XO. I can create the discussion again out of XO.

@sumansaha BTW , The issue was fix with a workaround. I've used another XOA where the interface was 1Gbps, Source XCP-NG--->XOA---> Destination SR all were 1Gbps . In that case transfer time has significantly dropped to 5 hours. For continuous replication, from source data stream come to XOA at first and then to the destination.Here I had a misconception , I was thinking backup data directly send to destination from Source XCP-NG.Thanks everyone for your help always.

@olivierlambert BTW new finding is , we also can't connect the XCP-NG with XCP-NG center. That mean the issue is with the XCP-NG server.

@olivierlambert Aha That make sense. Let me update my XO.

@olivierlambert suman@xoa:~$ wget --no-check-certificate https://192.168.196.99
--2023-06-27 17:34:59-- https://192.168.196.99/
Connecting to 192.168.196.99:443... connected.
WARNING: cannot verify 192.168.196.99's certificate, issued by ‘CN=xcp-ng-ohiphxpk’:
Self-signed certificate encountered.
WARNING: certificate common name ‘xcp-ng-ohiphxpk’ doesn't match requested host name ‘192.168.196.99’.
Failed writing HTTP request: Connection reset by peer.
Retrying.

It is not accessible through the URL.

@florent XO is not updated.
I was seeing progress when the backup process was running. 96% was completed . It has dropped on that status.
How I can enable NBD.

@Darkbeldin It was not updated nor rebooted actually.

@florent 2023-06-25T18_30_22.009Z - backup NG.txt

the log file is attached according to your requirement.

@Darkbeldin

Yes its showing the error as attached.But from XOA server we can SSH to XCP-NG without any issue.