New cluster cmcheckconf fails on standby lan

[Jim Naylor]

I am creating a new two node cluster. When I run the cmcheckconf I get this error on the standby lans (lan2 on both nodes).

Gathering Network Configuration ......... Done

Warning: Network interface lan2 on node deimos couldn't talk to itself.
Warning: Network interface lan2 on node mars couldn't talk to itself.
Error: lan2 on node deimos cannot be configured in the cluster
because it does not have an IP address, and it is not a standby lan for any other lan.
Error: lan2 on node mars cannot be configured in the cluster
because it does not have an IP address, and it is not a standby lan for any other lan.
Failed to evaluate network
cmcheckconf : Unable to reconcile configuration file /etc/cmcluster/cluster1.config
with discovered configuration information.

The lan2 devices are not configured. I tried toing an ifconfig lan2 unplumb and plumb but still get the same error. Here is my entry ing the /etc/cmcluster/cluster1.config:

NODE_NAME mars
NETWORK_INTERFACE lan0
HEARTBEAT_IP 10.146.0.187
NETWORK_INTERFACE lan2
NETWORK_INTERFACE lan3
HEARTBEAT_IP 10.147.0.185
NETWORK_INTERFACE lan4
HEARTBEAT_IP 10.145.0.183

FIRST_CLUSTER_LOCK_PV /dev/dsk/c8t1d0

I have identical entries for the second node. If I rmeove the lan2 entry then the cmcheckconf completes without error. Any suggestions will be appreciated.

[melvyn burnard · Accepted solution]

You have an issue with the connectivity, the Standby networks are unable to get in conatct with each other or even themselves

You need to verify this and rectyify, possible causes are bad cables, switch ports or switch connectivity

[Stephen Doud]

Use 'linkloop' to determine whether lan2 has any physical contact with at least one of the NICs that have IPs assigned to them. If it is segregated from them, it cannot act as a standby LAN.
In that case, comment it out of the cluster configuration file or connect lan2 on the same LAN/vLAN as an intended primary NIC.

Syntax:

# linkloop -I

Where the card instance number can be resolved from 'lanscan'

[Jim Naylor]

Thanks to both Melvyn and Stephen. It turns out both cables were wired incorrectly. We are running new cables and will make sure the are tested.

[Jim Naylor]

Both Melvyn and Stephen had the correct answer. Both cables were wired incorrectly. Thanks for the help.