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9
10 Check the system status to see whether the new node is online:
11 Add shared disk groups to the cluster configuration:
12 Create a /mnt on system03 and run the following commands:
13 Use
Removing a node from a cluster
This section describes how to remove a node from a cluster. As in previous
examples, the following removes the system system03 from a three-node
cluster. The procedure can be done from any node remaining in the cluster or
from a remote host.
To remove a node from a cluster
1
2
3
# haconf —dump -makero
Put the CVM resources back online, in the following order:
# hagrp -online cvm -sys system01
# hagrp -online cvm -sys system02
# hagrp -online cvm -sys system03
# hastatus —sum
-- SYSTEM STATE
-- System
A
system01
A
system02
A
system03
-- GROUP STATE
-- Group
System
B
cvm
system01
B
cvm
system02
B
cvm
system03
# cfsdgadm add cfsdg system03=sw
# cfsmntadm modify /mnt add system03=rw
Refer to
man page for more details.
cfsmntadm
command to cluster mount /mnt back on all the nodes:
cfsmount
# cfsmount /mnt
Log in as superuser on a node other than system03.
Stop all the cluster components:
# cfscluster stop -f system03
Open the VCS configuration for writing:
# haconf -makerw
Removing a node from a cluster
State
Frozen
RUNNING
0
RUNNING
0
RUNNING
0
Probed AutoDisabled
Y
N
Y
N
Y
N
Adding and removing a node
State
ONLINE
ONLINE
ONLINE
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