Managing Serviceguard A.11.20, March 2013

Table 14 Verifying Cluster Components
CommentsTool or Command; More InformationComponent (Context)
Checked for:cmcheckconf (1m), cmapplyconf
(1m)
Volume groups (cluster)
• existence
See also “Verifying the Cluster
Configuration ” (page 202).
• availability on each node
• 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)
See also “Verifying and Applying the
Package Configuration” (page 263).
Checked for modular packages
only, as part of package validation
(cmcheckconf -P)
cmcheckconf (1m), cmapplyconf
(1m)
See also “Verifying and Applying the
Package Configuration” (page 263).
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)
See also “Reviewing Cluster and Package
Status” (page 265).
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
Reviewing Cluster and Package Status 279