After the Upgrade from V10 SP15 to V11 SP7 on a client with SQL iData Agent, no more SQL backups run.
I can see multiple errors, but I don't know where the problem is.
Error encountered during backup. Error: 
CVArchive::WriteBuffer() - Cannot allocate buffer for sending data.
SqlDataWriter::writeData() - Failed to write data to the archive file, at line = 357.
SqlDataWriter::writeData() - POssible reasons might be that pipeline is down.
The CommServe and Media Agent are on the same software level as the client.
Has anyone an idea?