Using Serviceguard Extension for RAC Version A.11.20 - (August 2011)

Table 5 Verifying Cluster Components (continued)
CommentsTool or Command; More InformationComponent (Context)
• Same physical volumes on each
node
• Physical volumes connected on
each node
Checked only on nodes configured
to run the package.
cmcheckconf (1m), cmapplyconf
(1m)
Volume groups (package)
Checked for modular packages
only, as part of package validation
(cmcheckconf -P).
cmcheckconf (1m), cmapplyconf
(1m)
LVM logical volumes (package)
Checked for modular packages
only, as part of package validation
(cmcheckconf -P).
cmcheckconf (1m), cmapplyconf
(1m)
LVM physical volumes (package)
Standby status is checked for each
single NIC; cmviewcl also
reports APA status.
cmviewcl (1m), cmcheckconf (1m),
cmapplyconf (1m)
LANs (cluster)
cmviewcl flags offline standby in
an existing cluster, but not for a
cluster that is being created.
Commands check that the quorum
server, if used, is running and all
cmcheckconf (1m), cmapplyconf
(1m).
Quorum Server (cluster)
nodes are authorized to access it.
And, if more than one IP address
is specified, that the quorum server
is reachable from all nodes
through both the IP addresses.
Commands check that the disk(s)
are accessible from all nodes, and
cmcheckconf (1m), cmapplyconf
(1m)
Lock disk(s) (cluster)
that the lock volume group(s) are
activated on at least one node.
Commands check that all nodes
are be accessing the same
cmcheckconf (1m), cmapplyconf
(1m)
Lock LUN (cluster)
physical device and that the lock
LUN device file is a block device
file.
To check file consistency across all
nodes in the cluster, do the
following:
cmcheckconf (1m), cmcompare (1m).
IMPORTANT: See the manpage for
differences in return codes from
cmcheckconf without options versus
cmcheckconf -C.
File consistency (cluster)
1. Customize /etc/cmcluster/
cmfiles2check
2. Distribute it to all nodes using
cmsysnc (1m)
3. run cmcheckconf -C
For a subset of nodes, or to check
only specific characteristics such
as ownership, content, etc., use
cmcompare (1m).
Commands check that the
mount-point directories specified
cmcheckconf (1m), cmapplyconf
(1m)
Mount points (package)
in the package configuration file
exist on all nodes that can run the
package.
Commands check that files
specified by service commands
cmcheckconf (1m), cmapplyconf
(1m)
Service commands (package)
124 Maintenance