ExpressCluster X 2.0 for Windows Reference Guide - Nec

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Chapter 1 Functions of the WebManager Recovering a mirror (forcefully) 66 1. Mirror recovery If there is a difference between the mirror disks on both servers: If there is a difference between the mirror disks on both servers, and one of the servers has an error, the progress bar direction is fixed. When you click Execute, mirror recovery starts. When you click Execute, mirror recovery starts. If any group is active, the server with the active group becomes the source server. When it is possible to recover differences, only the difference is recovered. If it is impossible to recover differences, whole partition area is recovered. If there is no difference between the mirror disks on both servers: If there is no difference, full copy of the mirror is performed. If there is no difference between the mirror disks of both servers, and both servers are running normally, the progress bar is displayed. When you click Execute, mirror recovery starts. ExpressCluster X 2.0 for Windows Reference Guide
Section I Detailed functions of ExpressCluster Mirror disk helper If the status of both servers is Error: If both servers have errors, click Details to determine a source server. When you click Details, the following detailed information is displayed. Check the Last Data Update Time, and choose a server with the latest data as the source server. Note that the time you see here is of the OS. If you select an icon whose status is mirrored disk as the source, the progress bar is displayed. Click Execute to start mirror recovery. 67
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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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Status Descriptions Server Function
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Operating the cluster (clpcl comman
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Example of Execution The following
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Collecting logs (clplogcc command)
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Execution Result Section I Detailed
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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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CPU frequency control command clpcp
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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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Reboot count limit Section II Resou
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Max reboot count 1 Current reboot c
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Displaying and changing the group a
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“C:\Program Files\script.bat” S
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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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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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Understanding hybrid disk resources
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Chapter 7 Monitor resource details
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Monitor resource name Service monit
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appli1 Section II Resource details
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Configuration example Interval 60
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Maximum reboot count 1 Reboot count
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Changing the name of a monitor reso
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ecovery target. Failover Target Ser
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Replace Section II Resource details
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Understanding IP monitor resources
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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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The alarms command option -N [targe
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Section III Maintenance information
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Chapter 12 Troubleshooting This cha
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When activating or deactivating net
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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 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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