ExpressCluster X 2.0 for Windows Reference Guide - Nec

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Chapter 12 Troubleshooting Troubleshooting 772 The following provides instructions for troubleshooting problems you experience in operating the ExpressCluster system. When the ExpressCluster system does not start or end A cluster system starts working by restarting servers after installing ExpressCluster. If your cluster system does not behave properly, check the following: 1. Registration of cluster configuration data The cluster configuration data should be registered with all servers (which will form a cluster system) when you cluster them. Make sure that the cluster configuration data is uploaded on all the servers. For details, see Chapter 5, “Creating the cluster configuration data” in the Installation and Configuration Guide for registering the data. 2. Server names and IP addresses in the cluster configuration data Check the server names and IP addresses are valid. (>hostname,>ipconfig....) 3. License registration The license may not be registered yet. Run the license manager on all servers in the cluster to confirm that the license is registered: If you are using the trial version license, confirm if it is not expired yet. To run the license manager, select ExpressCluster Server from the Start menu, and then License Manager. 4. EXPRESSCLUSTER service Start the service control manager of the OS, and make sure that the following ExpressCluster services have been started. If all of them have been started, ExpressCluster is running normally. To run the service control manager, from Control Panel, select Administrative Tools and select Services. ExpressCluster ExpressCluster Disk Agent ExpressCluster Event ExpressCluster Manager ExpressCluster Old API Support ExpressCluster Server ExpressCluster Transaction ExpressCluster Web Alert 5. Free disk space Run [Disk Management] to check the size of the free disk space in the drive that contains . For details on the disk space to be used by ExpressCluster, see Chapter 3, “Installation requirements for ExpressCluster” in Getting Started Guide. To run Disk Management, select Control Panel, select Administrative Tools, and select Computer Management. Then from the icon tree, select Services under Services and Applications. 6. Usage of memory or OS resource Run Task Manager of the OS to check the OS memory usage and CPU usage rate. ExpressCluster X 2.0 for Windows Reference Guide
When activating or deactivating network partition resolution resource fails 1. Majority method Memory or OS resources may not be sufficient. Check them. 2. COM method The cause may be one of the following: Section III Maintenance information Troubleshooting - The specified device name (such as COM1 and COM2) may not exist in the system. Confirm that the device name specified by the Builder exists in the system. - Other application may be using the device name specified by the Builder (such as COM1 and COM2). Check the device name. 3. PING method Memory or OS resources may not be sufficient. Check them. 4. DISK method The settings of the Builder are invalid. Check that the disk heartbeat partition is set to be filtered on the HBA tab of Server Properties of the server that failed to be activated or deactivated. Check that the disk heartbeat partition is not used by other resource (disk resource, mirror disk resource). When a network partition resolution resource error is detected 1. Majority method Memory or OS resources may not be sufficient. Check them. 2. COM method Communication between the servers by the COM method cannot be performed. Confirm that the serial cable is connected to the device specified by the Builder properly. 3. PING method There is no PING command response from the PING destination device. Check that there is no problem in the communication path from the cluster server to the PING destination device. 4. DISK method Time-out occurred in accessing the disk heartbeat partition, or disconnection of the cable to the shared disk was detected. If a time-out has occurred, select Tuning on the Network Partition Resolution I/F tab of Tuning. Select the disk network partition resolution resource with an error on the Disk tab of the NP Resolution Tuning Properties dialog, and adjust IO Wait Time from Edit. If cable disconnection is detected, check the cable connection status. Network partition resolution resource becomes unavailable A combination of network partition resolution resources is invalid. Refer to Chapter 9, “Details on network partition resolution resources” and change the settings by using the Builder. 773
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ExpressCluster ® X 2.0 for Windows
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© Copyright NEC Corporation 2008.
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vi How to verify the status of each
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Network warning light switch off co
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x Service resources................
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xii Displaying NAS monitor resource
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Displaying and changing the details
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xvi IP monitor resource ...........
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ExpressCluster X Documentation Set
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Contacting NEC For the latest produ
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Chapter 1 Functions of the WebManag
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Section I Detailed functions of Exp
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Server Name: Select this to search
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Displaying the application resource
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appli1 Section II Resource details
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Appendix This section covers: • A
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Appendix A Glossary 862 Mirror conn
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Appendix B Index Displaying and cha
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Appendix B Index Floating IP, 435 F
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Appendix B Index Settings of the PI
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