Hello all! Hope to find you in a good shape!
In our environment, we are struggling with a problem of NDMP backups on NetApp devices.
*It was working just fine before, then just started to act like described below.
We do have a couple of subclients/paths configured, and they are randomly failing. No matter if it is Full or Incremental backup, no matter the which backup in a row. Sometimes same subclient might complete few backup in a row, but another one fails. There is no patter, random subclients with a random data amount. We cant find any pattern here.
That is basically the error message:
"Error Code: [39:501] Description: Client [XXXXXX] was unable to connect to the tape server [XXXXXXX] on IP(s) [10.100.XXX.XX, 10.100….., 10.100….., 10.100….., 169.254…..] port [50666]. Please check the network connectivity. Source: [MediaAgentXXX], Process: NasBackup "
What have been checked:
-Those machines are in the same VLAN - no routing no FW, ports are open.
-No errors found on the Switch Ports after monitoring them for some time
-Media agents restarted few times
-OS patched
-In Data Paths changed default media agents - did not help
On NDMP logs, we have found that:
But like I said, not errors on Switches found.
Interface pairs are in place - never been changed.
There is something in commvault logs related to interface pairs/network problems? But I am not sure if it is even related.
Problem to get interface pair? But few rows later, the connection is established anyway? (lof from failed backup)
Commvault case is already processed - but we are not having best experience…
Maybe someone is having some similar experience and know a solution?
CV version is 11.32.45, and we are afraid that it started to fail after an upgrade.
