Error Backup Snapshot Vmware

[admin_bkp007]

Hi Folks

I know this issue was very stressed about troubleshootings here, but unfortunately I didn't find any solution in my searching in VOX or web.

First of all, my environment is NBU v10.0.0.1 and Vcenter and ESXI are VMWARE 7.0 U3, I put credentials about my Vcenter in Netbackup, is not a plan protection.

Telnet are OK for port 443/80 in Vcenter from master and media server // Telnet are OK for port 902 from master and media server for hosts ESXI.

Vmwaretools upgraded last version, client NBU installed in the host I got snapshot, already checked my network don't have firewall, everything apparently working fine.

My environment do backup only transport mode NBD, user has admin permissions.

When I try to do backup snapshot display error like below I have 1 media server, so if I try to run backup for the tape is working fine, what I missing here please?

Mar 28, 2024 12:41:48 PM - Info bpbkar (pid=1438423) INF - Backing up vCenter server vcenter, ESX host esxi01 BIOS UUID 423c4015, Instance UUID 503c8d78-cc94930c7f7a, Display Name XXXX, Hostname 192.168.1.10
Mar 28, 2024 12:53:57 PM - Warning bpbrm (pid=1438337) from client XXXX: WRN - openLeafSnapshotDisks: Unable to open virtual disk [vSANDatastore] ad914b65-eece-6425-a33e-e4434bc744e0/XXXX-000002.vmdk using transport mode: nbd. Please review your LUN configuration and make sure that required LUNs are accessible on the backup host.
Mar 28, 2024 12:53:57 PM - Error bpbrm (pid=1438337) from client XXXXX: ERR - Error opening the snapshot disks using given transport mode: nbd Status 23
Mar 28, 2024 12:53:58 PM - Critical bpbrm (pid=1438337) from client XXXX: FTL - cleanup() failed, status 6
Mar 28, 2024 12:54:00 PM - Error bptm (pid=1438440) media manager terminated by parent process
Mar 28, 2024 12:54:04 PM - end writing; write time: 0:12:17
Mar 28, 2024 12:54:05 PM - Info nbumedia11 (pid=1438440) StorageServer=PureDisk:nbumediaserver; Report=PDDO Stats for (mediaserver): scanned: 2 KB, CR sent: 0 KB, CR sent over FC: 0 KB, dedup: 100.0%, cache disabled, where dedup space saving:100.0%, compression space saving:0.0%
Mar 28, 2024 12:54:05 PM - Critical bpbrm (pid=1438337) unexpected termination of client XXXXXX
Mar 28, 2024 12:54:05 PM - Info bpbkar (pid=0) done. status: 6: the backup failed to back up the requested files
User backup failed  (6)

[quebek · Accepted solution]

Hi

Can the ESXi reach back to primary/media servers with telnet via name/IP?? Maybe ESXi is multihomed and other interface is being selected... thinking out loud.

I would have enable vxms logging on media which I hope is a backup host ->

https://www.veritas.com/support/en_US/doc/21902280-127283730-0/v23649764-127283730

Review created logs... also check in /tmp/vmware if its empty.

[admin_bkp007]

Sorry I'm late.

Thanks for your suggestion, about your question yes the ESXI can reach primary/media by name/IP, telnet is OK about all ports we need to connect.

I checked we don't have installed MSDP Bundle (Etrack 4078688), after we did installation I following everything is looking good, I don't know yet if was solution.