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S6800T V200R002C00SPC400 iscsi bit error is large

Publication Date:  2015-06-30 Views:  89 Downloads:  0
Issue Description


StorageS6800T V200R002C00SPC400



There is a alarm like “The number of bit errors on iSCSI host port (engine ENG0, ISCSI interface module A5, port ID P1) is large. The system performance may be affected.”


Alarm Information

Handling Process

Debug method

1. Collect logs. And open running-data.txt file.

Find the same port in logs and remember IP address

2. Open msg_other\Other\ifconfig file and search IP address which found in step1.

3.  Check the RX packets. We can know overruns number is 60604 which means IO

    from host port is too fast and this is caused by switch doesn’t enable flow control.

Root Cause

Root cause

Switch doesn’t enable flow control.



    Enable flow control in switch view by command: symmetric-flow-control enable.

bit error should check switch first to know if the flow-control is enable