Summary:
Azure VMs may experience network disruptions, degraded performance, and loss of stability because of RX packet drops.
Symptoms:
- Non-zero rxdrop counter in SAR report
- Disrupted network connections, including iSCSI initiator connections.
- Degraded performance
Affected products:
- FlashGrid Cluster on Azure
Affected versions:
FlashGrid Cluster versions below 23.02
Root cause:
Default NIC RX buffer size is too small.
Resolution:
Update to FlashGrid Cluster version 23.02 or later.