a. First connect the console to node 00 and then to node 01 for this and the following sub-step, to make
modifications to
/etc/sysconfig/network-scripts/ifcfg-pub0
on both MGMT nodes 00 and 01,
as root:
[admin@sn11100n000]$ sudo vi /etc/sysconfig/network-scripts/ifcfg-pub0
DEVICE=pub0
BOOTPROTO=static
IPADDR=nnn.nnn.nnn.nnn
NETMASK=nnn.nnn.nnn.nnn
GATEWAY=nnn.nnn.nnn.nnn
ONBOOT=yes
DNS1=n.n.n.n
DNS2=n.n.n.n
b. Issue a network restart for both nodes 00 and 01:
[admin@sn11100n000]$
sudo /etc/sysconfig/network-scripts/ifdown pub0
[admin@sn11100n000]$
sudo /etc/sysconfig/network-scripts/ifup pub0
IMPORTANT: Wait up to 20 minutes for the nodes to fully initialize and all resources to start
before running any CSCLI commands.
12. Ping each of the nodes to verify that they are functioning:
[admin@sn11100n000]$
sudo ping IPaddress
If the statement
Destination host unreachable
appears in the output, that node is not connected.
Repeat this step until both nodes appear, or contact Cray service.
13. Verify that both nodes are started:
[admin@sn11100n000]$
sudo crm_mon -r1
In some cases, node 0 will fail over to node 1.
14. Check for HA status:
[admin@sn11100n000]$
sudo crm_mon -r1
Correct output indicates that all resources have started and are balanced between the two nodes, for
example:
[admin@sn11100n000]$
sudo crm_mon -r1
============
Last updated: Tue May 24 09:21:40 2016
Last change: Tue May 24 05:52:11 2016 via crm_resource on sn11188n001
Stack: Heartbeat
Current DC: sn11100n001 (625fe43a-456a-4d99-9ea9-0732341164a7) - partition with
quorum
Version: 1.1.6.1-6.el6-0c7312c689715e096b716419e2ebc12b57962052
2 Nodes configured, unknown expected votes
65 Resources configured.
============
Online: [ sn11100n000 sn11100n001 ]
Full list of resources:
Power On the ClusterStor L300 and L300N System
60
