ExpressCluster X 2.0 for Windows Reference Guide - Nec

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Chapter 7 Monitor resource details 584 Recover Target appli1 Reactivation Threshold 1 Failover Threshold 1 Final Action Stop Group Start activating group Activating Activated Pending appli1 Start Application Application monitor Application aborted Monitor wait time/activating/deactivating Deactivating /activating Start monitoring Request reactivation Activated Application aborted Waiting to start monitoring Monitor resource polling Monitor Waiting to start monitoring Monitor resource polling 0 60 stopped 0 60 No error is detected No error is detected because monitoring is An error is detected because monitoring is started and appli1 is reactivated started Monitor wait time – active range Request failover Time for monitor processing Normal range of time for monitor processing If the application is abnormally terminated in the destination server of the group failover, the group stops as the final action. When Stop cluster service and shutdown OS or Stop cluster service daemon and reboot OS is selected as a final action to be taken when an error is detected by the monitor resource, the number of shutdowns or reboots can be limited. Note: The maximum reboot count is on a server basis because the number of reboots is recorded on a server basis. The number of reboots caused by a final action in detection of error in group activation/deactivation and the number of reboots caused by a final action in detection of error by a monitor resource are recorded separately. If the time to reset the maximum reboot count is set to zero (0), the number of reboots will not be reset. The following is an example of the process when the number of reboots is limited. As a final action, Stop cluster service and reboot OS is executed once because the maximum reboot count is set to one. When the monitor resource finds no error in its target for 10 minutes after reboot following cluster shutdown, the number of reboots is reset because the time to reset the maximum reboot count is set to 10 minutes. Monitor stopped Failover to the next policy server Time An error is detected and group fail over takes place Monitoring stopped range ExpressCluster X 2.0 for Windows Reference Guide
Configuration example Interval 60 sec Timeout 120 sec Retry count 3 times Recovery Target Failover group A Reactivation Threshold zero Failover Threshold zero Final Action Stop cluster service and reboot OS < Reboot count limit> Maximum reboot count 1 Time to reset the maximum reboot count 10 minutes Section II Resource details Monitor resources 585
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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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The following is the description of
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For hybrid disk resource Section I
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(6) Current server (only hybrid dis
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When you click the icon of the serv
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Limitations of the WebManager Secti
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Error Detected disk error while rec
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Chapter 2 Functions of the Integrat
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Chapter 4 ExpressCluster command re
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Return Value --grp [group_name] Sec
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Examples of executing the command t
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Status Descriptions Server Function
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Operating the cluster (clpcl comman
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Message Cause/Solution Internal com
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Example of Execution The following
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Error message Message Cause/Solutio
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Collecting logs (clplogcc command)
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Execution Result Section I Detailed
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Error Message Section I Detailed fu
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Modifying the log level and size Se
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Types that can be specified for the
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Type Module Description regsyncw cl
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Type Level Size (byte) hdsnapshot 8
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Monitoring Agent Types that can be
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Mirror disk resource operation comm
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Message Cause/Solution clpmdctrl fa
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Error messages Message Causes/Solut
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Hybrid disk status display command
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Mirror Color Hybrid disk status in
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� Hybrid disk resource configurat
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Message output command clplogcmd: t
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Error Messages Message Causes/Solut
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CPU frequency control command clpcp
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Chassis identify control command cl
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EXEC_SCRIPT IP: Specified script (s
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New password: ********** Retype new
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# clphookctrl -m REBOOT Error messa
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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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Understanding failover policy Secti
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X X X When the failover exclusive a
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X X ~ For Replicator ~ (two-server
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The following describes how an erro
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Section II Resource details Failove
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Reboot count limit Section II Resou
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Max reboot count 1 Current reboot c
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Section II Resource details Failove
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Section II Resource details Display
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Displaying and changing the group a
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Section II Resource details Logical
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“C:\Program Files\script.bat” S
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Status: Status of the resources of
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Section II Resource details Underst
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Displaying the application resource
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Understanding floating IP resources
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Notes on floating IP resources Sect
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Understanding mirror disk resources
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Examples of mirror disk constructio
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Tuning mirror disk resource Section
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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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Environment variables for Start. ba
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Understanding script resources (6)
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(10) Stopping Group B The stop scri
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Additional information 1 Section II
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Additional information 2 When a mon
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A. Group A start script: a sample o
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B. Group A stop script: a sample of
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Tips for creating scripts Section I
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Understanding disk resources Depend
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Disk Resource Properties: Details t
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If you click the Details button, th
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Service resource tuning properties
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Understanding print spooler resourc
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Services available to the virtual c
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Understanding virtual IP resources
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Determining virtual IP address Sect
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• Timeout (1 to 999999) SuspendRe
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Understanding CIFS resources Depend
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CIFS monitor resources monitor CIFS
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Understanding hybrid disk monitor r
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Understanding DB2 monitor resources
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Monitoring by FTP monitor resources
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IP Address SuspendResume Section II
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User Name Within 255 bytes SuspendR
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Understanding POP3 monitor resource
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Authentication Method SuspendResume
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Understanding SQL Server monitor re
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Install Path Within 1023 bytes Susp
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Default value: None Section II Reso
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Chapter 8 Heartbeat resources This
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Chapter 9 Details on network partit
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PING network partition resolution r
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Chapter 10 Other monitor settings T
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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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Chapter 12 Troubleshooting This cha
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When activating or deactivating net
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Recovering a suspended server (with
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Checking the mirror break status wi
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3. Logically examine the data on th
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� While mirror recovery is in pro
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Recovering mirror using the WebMana
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Chapter 13 Error messages Messages
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Chapter 13 Error messages Driver ev
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Chapter 13 Error messages Mirror di
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Chapter 13 Error messages DB2 monit
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Chapter 13 Error messages SQL Serve
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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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