How to classify and define SAN network faults

This article will explain in detail how to classify and define SAN network faults. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

(1) according to the fault object:

Ip SAN:

Ip cannot be used together with port limit vlan setting unreasonable switch port failure Nic failure

Fc san:

Port mode mismatch port rate mismatch compatibility sfp insufficient optical power fiber or port physical failure

HBA card driver exception

(2) classified according to the nature of the fault

Physical failure: the hardware or physical equipment is abnormal and does not work properly.

Logic failure: abnormal logic state of the device, such as driver or module loading exception.

Configuration exception: unreasonable configuration of link communication parameters (rate mode) leads to exception

(3) the whole process of san network fault diagnosis.

Ip san

Check storage iscsi port statu

Check switch port status and vlan configuration

Check server status, ip gateway, etc. Configuration

Check the server iscsi initiator service

Check iscsi startup version compatibility

Check multipath statu

Fc san

Check storage fc port status, rate, and mode

Check switch port status, zone configuration, port rate, mode

Check the physical status and driver load of the server HBA card

Check multipath statu

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