Hi,
The carmelusd process will reprogram the carmel ASIC component in the switch whenver a change in network occurs like new ARP entry, host going offline etc.
I would recommend to watch the logs and monitor a period of time to isolate the issue.
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/troubleshooting/guide/N5K_Troubleshooting_Guide/n5K_ts_sm.html
Muhammed M | NCE | CCIE
Data Center PDI Technical Advisor
http://www.cisco.com/go/pdi
together we are the human network .:|:.:|:. CISCO