HP 3PAR Cluster Extension Software Administrator Guide (5697-1429, March 2012)

• For each system, HP 3PAR Cluster Extension keeps its own log file in its default log location.
Log locationLog fileSystem
%HPCLX_3PAR_PATH%\logclx3PARmscs.logWindows
/var/opt/hpclx3par/logclx3PARlxcs.logLinux
/var/opt/hpclx3par/logclx3PARrun.logCLI
• HP 3PAR Cluster Extension messages can also be found in the following:
MSCS log file◦
◦ RHCS and SLE HA: /var/log/messages
Always disable automatic service or application/package failover when merging or
resynchronizing Remote Copy volume groups. A failure of the resynchronization source while
resynchronizing can lead to noncurrent data on the resynchronization target.
Start errors
• In Windows, generic startup or initialization logic errors can occur when the path to the HP
3PAR Cluster Extension binaries has not been set in the PATH environment variable and the
processes (for example the cluster service) have not recognized the %HPCLX_3PAR_PATH%
variable. To fix this problem, restart the cluster service.
• A start error occurs if the APPLICATION name tag value in the HP 3PAR Cluster Extension
resource configuration file does not match the service name (RHCS) or the HP 3PAR Cluster
Extension resource App (SLE HA).
• If the required components of HP 3PAR Cluster Extension are not available, a file (clxlog.log
) is generated that can be used for troubleshooting. The file is usually in the working directory
of the operating system (%SYSTEMROOT%).
• HP 3PAR Cluster Extension returns a local error if any of the following occurs:
HP 3PAR Cluster Extension does not find the user configuration file for clx3PARrun in
the correct directory location.
◦
◦ HP 3PAR Cluster Extension does not find the HP 3PAR Cluster Extension resource
configuration file for RHCS or SLE HA integration in the correct directory location.
◦ An error occurs after initialization.
Failover error handling
Windows Cluster automatically fails over resource groups if the system where resource group is
running on becomes unavailable. This is part of the cluster functionality. Also, this means that if a
problem occurs with the HP 3PAR storage system, a resource group online process will be stopped.
The behavior of HP 3PAR Cluster Extension is highly configurable. Depending upon the customer
setting, Cluster Extension is used to prevent resource groups from going online automatically under
the wrong conditions.
Cluster Extension will return local, data center-wide or even cluster-wide errors to prevent accidental
access to the resource group’s virtual volumes. HP does not recommend restarting a failed resource
group without investigating the problem. A failed Cluster Extension resource indicates the need to
check the status of the Remote Copy volume group and its member virtual volumes and decide
whether it is safe to continue or not.
HP 3PAR Cluster Extension services, resources, or resource groups return a data center error and
fail the resource if the Remote Copy volume group status indicates that the problem experienced
locally would not be solved on another system connected to the same HP 3PAR storage system.
Start errors 79