Description of problem: It is impossible to limit bandwidth used for storage migration tasks. This can cause storage network and SAN congestion issues preventing normal cluster operation Version-Release number of selected component (if applicable): vdsm-4.14.7-3.el6ev.x86_64 How reproducible: always Steps to Reproduce: 1. iSCSI SAN and all hosts connected over a 1 gbps link using dedicated storage network 2. start a storage migration Actual results: 3. SPM saturates 1 gbps link on the SAN port 4. other hosts have problems reaching the SAN Expected results: 3. bandwidth limit configured on SPM, it only uses that limit for storage migrations 4. other hosts in the cluster have no issues reaching the SAN Additional info: technology and link speed may vary. THe important point here is that storage migrations may saturate the SAN and negatively affect other hosts and VMs on them.
We didn't get to this bug for more than 2 years, and it's not being considered for the upcoming 4.4. It's unlikely that it will ever be addressed so I'm suggesting to close it. If you feel this needs to be addressed and want to work on it please remove cond nack and target accordingly.
ok, closing. Please reopen if still relevant/you want to work on it.