We have upgraded our networker version from version 9.0.1.6 to version 9.1.1.1, because we are upgrading our vSphere environment to version 6.5 and want to make use of the new vproxies.

After upgrading to this version we are having problems using cloning between our two data domains.

The backups work fine and the clones to tape also work fine. The clone from one data domain to another is behaving erratic. Mostly clones after the backup of our networker clients starts to hang when another clone starts that wants to access the same volumes. (e.g. NAS backups). When we kill the clone of the clients, the other clone starts immediately and finishes without a problem. In the logs I find some references to server parallelism that is not set high enough, but is currently set at 1024 which is the maximum value.

In the logs of the clone I find some warnings that weren't there is the previous version of networker, maybe this has got something to do with it?

these warnings are:

- Unable to join save thread during clone end. The thread is NULL

- Unable to join recovery thread during rs context clean up . The thread is NULL

- Unable to join save thread during rs context clean up . The thread is NULL

Has somebody experience the behaviour that I described here. Or do know what these warnings mean?

I already opened a SR, but by the time it is assigned and that the problem is really investigated, we are a few days further and I wanted to get a headstart.