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Abnormal Disk I/O Persists on LACP Bond After Switch Port Reset and TCAM Misconfiguration

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solidfire
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Applies to

  • SolidFire Storage Nodes
  • SolidFire H-Series Storage Nodes
  • Element Software
  • SFP: CISCO-FINISAR SFP-H10GB-AOC5M FCBG110SD1C05-CS
  • Cisco Nexus 93180YC-FX
  • Cisco ACI switch
  • LACP rate Fast; LACP suspend individual off
  • TCAM (Ternary Content Addressable Memory)

Issue

If TCAM is not properly configured on the Nexus 93180YC-FX switches, the SolidFire cluster may experience dropped packets across the virtual peer-link tunnel, potentially causing performance degradation or connectivity issues that impact application performance and storage access from the host perspective.

  • Cisco Nexus 93180YC-FX vPC switches lack the required TCAM configuration
  • LACP bond doesn't recover after bringing port down and then back up on a switch 
    solidfire_node ~ # cat /proc/net/bonding/Bond10G
Active Aggregator Info:
 Aggregator ID: 1
 Number of ports: 1 (Instead of 2)
  • 10G link on SolidFire side remains UP when the port is Disabled (Administratively Down) on a switch side

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