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Performance implications of using mixed 40G and 10G cluster interconnects

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508
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0
Category:
fas-systems
Specialty:
hw
Last Updated:

Applies to

  • ONTAP 9
  • Clustered Data ONTAP 8
  • CN1610 / Nexus Cisco cluster interconnect switches

Issue

  • Increased latency over the cluster interconnect is observed when accessing data indirectly, along with port errors in netstat and/or  ifstat in a cluster of different platform models having 40G supported in one HA pair and 10G supported in another HA pair with data from 40G nodes being accessed through 10G nodes.
  • As it can cause pressure on the node(s) sending and/or receiving the traffic which shows up as retransmits in netstat  or buffer issues/packet drops on the ifstat -a output when a data Lif connects indirectly to access data (over the cluster interconnect). 

 

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