PRIMECLUSTER Global Link Services Configuration and Administration Guide: Redundant Line Control Function 4.2 (for Linux)

D.1.4.1 Node switching is not executed in Fast switching mode

Symptom:

Failover between clusters (job switching between nodes) is not executed in Fast switching mode at cluster operation.

Corrective action:

In Fast switching mode, it is decided that an error occurred in a transfer route when a response from all other systems in communication was cut off. Therefore, node switching is not executed when all cables are pulled out or when the power of all HUBs is not turned on. If "Link detected: no" message pops up, check the status of the cable and HUB. Although, if the driver for NIC does not support ethtool command, you can not use this command. When the following message is often displayed, check the cables or HUBs.

# ethtool eth0
Settings for eth1:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised auto-negotiation: No
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: off
        Supports Wake-on: g
        Wake-on: g
        Current message level: 0x00000007 (7)
        Link detected: yes