Red Hat CLUSTER FOR ENTERPRISE LINUX 5.0, Руководство по настройке

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Parameter Description
Device The storage device the quorum daemon uses. The device must be the
same on all nodes.
Label Specifies the quorum disk label created by the
mkqdisk
utility. If this
field contains an entry, the label overrides the Device field. If this field
is used, the quorum daemon reads
/proc/partitions
and checks
for qdisk signatures on every block device found, comparing the label
against the specified label. This is useful in configurations where the
quorum device name differs among nodes.
Quorum Disk
Heuristics
Program — The program used to determine if this heuristic is alive.
This can be anything that can be executed by
/bin/sh -c
. A return
value of 0 indicates success; anything else indicates failure. This field
is required.
Score — The weight of this heuristic. Be careful when determining
scores for heuristics. The default score for each heuristic is 1.
Interval — The frequency (in seconds) at which the heuristic is polled.
The default interval for every heuristic is 2 seconds.
Table 5.1. Quorum-Disk Parameters
3. Configuring Cluster Properties
In addition to configuring cluster parameters in the preceding section ( Section 2, “Starting the
Cluster Configuration Tool” ), you can configure the following cluster properties: Cluster Alias
(optional), a Config Version (optional), and Fence Daemon Properties. To configure cluster
properties, follow these steps:
1. At the left frame, click Cluster.
2. At the bottom of the right frame (labeled Properties), click the Edit Cluster Properties
button. Clicking that button causes a Cluster Properties dialog box to be displayed. The
Cluster Properties dialog box presents text boxes for Cluster Alias, Config Version, and
two Fence Daemon Properties parameters: Post-Join Delay and Post-Fail Delay.
3. (Optional) At the Cluster Alias text box, specify a cluster alias for the cluster. The default
cluster alias is set to the true cluster name provided when the cluster is set up (refer to
Section 2, “Starting the Cluster Configuration Tool” ). The cluster alias should be descriptive
enough to distinguish it from other clusters and systems on your network (for example,
nfs_cluster
or
httpd_cluster
). The cluster alias cannot exceed 15 characters.
4. (Optional) The Config Version value is set to
1
by default and is automatically incremented
each time you save your cluster configuration. However, if you need to set it to another value,
you can specify it at the Config Version text box.
Configuring Cluster Properties
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