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OES 2 SP2: Novell Cluster Services 1.8.7 for Linux Administration Guide
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To modify the EVMS timeout:
1
Open the
/etc/evms.conf
file in a text editor.
2
Edit the following section to increase the
remote_request_timeou
t value:
engine {
# Timeout in seconds when waiting for a response from a remote node
remote_request_timeout = 12
}
3
Save the file.
4
At the terminal console prompt, enter
evms_activate
8.9 Shutting Down Linux Cluster Servers When
Servicing Shared Storage
If you need to power down or recycle your shared storage system, you should shut down Linux
Cluster Servers prior to doing so.
8.10 Enabling or Disabling Cluster Maintenance
Mode
Cluster maintenance mode lets you temporarily suspend the cluster heartbeat while hardware
maintenance is being performed. This is useful if you want to reset or power down the LAN switch
without bringing down cluster servers.
Enabling the cluster maintenance mode from one cluster node puts the entire cluster in maintenance
mode.
1
Log in as the
root
user to a node in the cluster, then enter the following at a terminal console
prompt:
cluster maintenance on
If the master server in the cluster is up, disabling the cluster maintenance mode from one cluster
node brings the entire cluster out of maintenance mode. If the master server in the cluster goes down
while the cluster is in cluster maintenance mode, you must disable cluster maintenance mode on all
remaining cluster nodes in order to bring the cluster out of maintenance mode.
1
Log in as the
root
user to a node in the cluster, then enter the following at a terminal console
prompt:
cluster maintenance off
8.11 Preventing a Cluster Node Reboot after a
Node Shutdown
If LAN connectivity is lost between a cluster node and the other nodes in the cluster, it is possible
that the lost node will be automatically shut down by the other cluster nodes. This is normal cluster
operating behavior, and it prevents the lost node from trying to load cluster resources because it
cannot detect the other cluster nodes.