Thanks. I didn't know about that command, but after reading its man and trying it, it seems to require to freeze the XFS before a disconnection, and that's nothing that could be predicted. I should have said it on the initial mail, that the temporary disconnections are not scheduled, but arbitrary, as they depend on network availability. As long as all operations were retried, network gaps would only cause delays, but not fatal failures. Is that something I can configure? Thanks again, Albert