A patch has been released for a recently discovered security issue. The cluster administrator has
downloaded the patch and the README shows that it is a rebooting node patch that must be
installed in single-user mode.
What steps should be followed to apply this patch with the minimum amount of downtime for the
service.
A.
On each node in turn run the commands:
clnode evacuate -n
shutdown -gO -y -i0
boot -sx
Apply the patch.
Reboot back into cluster.
B.
On one node run the following commands:
clrg status
clrg offline +
On each node in turn run the commands:
shutdown -g0 -y -i0
boot -sx
Apply the patch.
Reboot back into cluster.
When all nodes are patched run the following commands from one node:
clrg online +
clrg status
C.
Connect to all nodes using the cluster console and apply the patch simultaneously.
Reboot each node in turn.
D.
On one node run the commands:
clrg status
cluster shutdown -g0 –y
Reboot each node outside cluster.
boot -sx
Apply the patch on each node and reboot back into cluster.
boot