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6/9/2016: Lulu: No firmware update from Michael. There are no security updates available via YUM. FSCK run no errors found. Synology firmware got updated. We did UPS test. After 15 minutes, Synology went to safe mode and Matrix head node got to shutdown properly and battery was about %67 full. We found one switch has a few links problem, which makes m101 cannot boot and m102 lost network connection from head node.
9/14/2016: Lulu: No firmware update from Michael. There are no security updates available via YUM. No FSCK. Synology firmware got updated. m102 cannot boot. It looks like network switch or cable problem.