ExpressCluster X 2.0 for Windows Reference Guide - Nec

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Chapter 7 Monitor resource details 582 Related Information: To configure the delay warning of monitor resources, click Cluster Properties, click Delay Warning, and select Monitor Delay Warning. For details, refer to “Parameter details” in Chapter 3, “Function of the Builder.” Waiting for monitor resource to start monitoring “Wait Time to Start Monitoring” refers to start monitoring after the time period specified as the waiting time elapses. The following describes how monitoring differs when the wait time to start monitoring is set to 0 second and 30 seconds. Configuration of monitor resource Interval 30 sec Timeout 60 sec Retry Count 0 time Wait Time to Start Monitoring 0 sec / 30 sec Monitor wait time 0 sec Monitor wait time 30 secs Start monitoring after the cluster starts or Restart Monitor resource polling 0 30 Monitor wait time 0 30 Time-out Note: Monitoring will restart after the time specified to wait for start monitoring has elapsed even when the monitor resource is suspended and/or resumed by using the monitoring control commands. The wait time to start monitoring is used when there is a possibility for monitoring to be terminated right after the start of monitoring due to incorrect application settings, such as the application resource monitored by application monitor resource, and when they cannot be recovered by reactivation. Time Monitor wait time – Range of activation Time for monitor processing Normal range of time for monitor processing 60 Monitor resource polling 120 Time ExpressCluster X 2.0 for Windows Reference Guide
appli1 Section II Resource details Monitor resources For example, when the monitor wait time is set to 0 (zero), recovery may be endlessly repeated. See the example below: Configuration of application monitor resource Interval 5 sec Timeout 60 sec Retry Count Zero Wait Time to Start Monitoring 0 sec (default) Recover Target appli1 Reactivation Threshold 1 Failover Threshold 1 Final Action Stop Group Start activating group Activating Activated Application Start Application monitor Monitor resource polling Monitoring finding no errors Monitor wait time / Activating / Inactivating Application aborted deactive/activating Start monitoring Request reactivation Monitor resource Interval polling Monitor stopped An error is detected and appli1 is Normal monitoring reactivated. Monitor wait time – Range of activation Start Monitor resource polling Activated Application aborted Time for monitor processing Normal rang of time for monitor processing Deactivating/activatin Start monitoring Request reactivation Monitor resource Interval polling Monitor stopped Start An error is detected and appli1 is reactivated Monitoring Range of stopping The reason why recovery action is endlessly repeated is because the initial monitor resource polling has terminated successfully. The current count of recoveries the monitor resource has executed is reset when the status of the monitor resource becomes normal (finds no error in the monitor target). Because of this, the current count is always reset to 0 and reactivation for recovery is endlessly repeated. You can prevent this problem by setting the wait time to start monitoring. By default, 60 seconds is set as the wait time from the application startup to the end. Configuration of application monitor resource Interval 5 sec Timeout 60 sec Retry Count Zero Wait Time to Start Monitoring 60 sec Time 583
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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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Module type Category pm ExpressClus
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Mirror disk helper Overview of the
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For hybrid disk resource Section I
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Status Descriptions Server Function
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Operating the cluster (clpcl comman
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Collecting logs (clplogcc command)
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Message Cause/Solution clpmdctrl fa
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Hybrid disk status display command
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Chapter 6 Group resource details Th
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What is a group? Section II Resourc
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X X X When the failover exclusive a
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Displaying the application resource
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Understanding floating IP resources
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Understanding mirror disk resources
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Displaying the mirror disk resource
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Understanding registry synchronizat
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Server 1 Group A 1 Start Stop Group
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Execution timing of script resource
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User Name Within 255 bytes SuspendR
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PING network partition resolution r
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Section II Resource details The for
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The alarms command option -N [targe
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Mail report actions Section II Reso
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Section III Maintenance information
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Chapter 11 The system maintenance i
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When activating or deactivating net
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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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