Adding or removing LLT links without restarting LLT / Howto replace Heartbeat NIC(s) of VERITAS Cluster

Posted on February 2, 2015

1


Environment

SFHA version = 5.1

OS = 5.9 Solaris SPARC

Please freeze the cluster before doing this activity

Agenda

Suppose you need to replace the bge2 Ethernet with ce0   (ONLINE without restarting gab, llt and  hastop -all -force)

# lltconfig -t ce0 -d /dev/ce:0
# lltconfig -u bge2
  • First command will add the new Ethernet heartbeat. Second command will remove the old Ethernet heartbeat. (Dont try to remove first before adding the Ethernet).
  • Run the above two commands only on the Cluster node where the Ethernet card is going to replace.
Make sure the new Heartbeat
# lltstat -nvv|more
LLT node information:
    Node                 State    Link  Status  Address
     0 PRI-PHX           OPEN
                                  bge1   UP      00:03:BA:FD:23:5E
                           ce0   UP      00:03:BA:FD:23:5F
                                  bge0   UP      00:03:BA:FD:23:5D
   * 1 SEC-PHX           OPEN
                                  bge1   UP      00:14:4F:7A:4B:71
                                  ce0   UP      00:14:4F:6A:3C:48
                                  bge0   UP      00:14:4F:7A:4B:70
 
Edit the /etc/llttab file
 
Replace the entry of bge2 (Old Ethernet) with ce0 (New Ethernet)
Existing configuration
root@PASSIVE-NODE # cat /etc/llttab
set-node PASSIVE-NODE
set-cluster 1111
link bge1 /dev/bge:1 – ether – –
link bge2 /dev/bge:2 – ether – –
link-lowpri bge0 /dev/bge:0 – ether – –
 
New Configuration
root@PASSIVE-NODE # cat /etc/llttab
set-node PASSIVE-NODE
set-cluster 1111
link bge1 /dev/bge:1 – ether – –
link ce0 /dev/ce:0 – ether – –
link-lowpri bge0 /dev/bge:0 – ether – –
View Java Console
 
Under Java Console=>Cluster=>System Connectivity,  you will notice a cross on the heartbeat. This cross will clear when you reboot the cluster node on which the heartbeat Ethernet is replaced.
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