ExpressCluster X 2.0 for Windows Reference Guide - Nec

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Chapter 7 Monitor resource details 598 If you click the Details button, the following information is displayed. Type: Monitor resource type Monitor Timing: Timing for the monitor resource to start monitoring Target Resource: Resource to be monitored Interval: Interval between monitoring (in seconds) Timeout: Time to elapse from detection of an error to establish the monitor resource as error (in seconds) Retry Count: The number of retries to be made from detection of an error in the monitor target to establish the error as error Final Action: Final action at detection of an error Execute Script before Final Action: Whether or not script is executed when a failure is detected Recovery Target: Target to be recovered when an error is detected Recovery Target Type: Type of target to be recovered when an error is detected Reactivation Threshold: The number of times activation is retried when an activation error is detected Faiover Destination Server Determination method of Failover Target Server Failover Threshold: The number of failovers to be made at detection of an error Wait Time to Start Monitoring: Time to wait before start monitoring (in seconds) Understanding disk RW monitor resources ExpressCluster X 2.0 for Windows Reference Guide
Section II Resource details Understanding disk RW monitor resources Disk RW monitor resources monitor disk devices by writing dummy data to the file system. Monitoring by disk RW monitor resources Disk RW monitor resources write data to the specified file system (basic volume or dynamic volume) with the specified I/O size and evaluate the result. They solely evaluate whether data was written with the specified I/O size but do not evaluate validity of data. OS and disk get highly loaded if the size of I/O is large. Depending on the shared disk and/or interface being used, caches for various writing are mounted. Because of this, if the size of I/O is small, a cache hit may occur and an error in writing may not get detected. Intentionally generate a disk error to confirm that the size of I/O is sufficient to detect an error. Displaying and changing disk RW monitor resource details 1. Click Monitors on the tree view displayed on the left side of the Builder window. 2. List of the monitor resources is displayed in the table view on the right side of the screen. Right click the target disk RW monitor resource, and click the Parameter tab in the Monitor Resource Property window. 3. On the Parameter tab, you can display and/or change the detailed settings by following the description below. File Name Within 1023 bytes SuspendResume Enter the file name to access. This file is created upon monitoring and deleted after I/O completes. Note: Specify an absolute path for the file name. If a relative path is specified for the file name, the disk RW monitor resource may monitor the unexpected place. Important: 599
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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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Return Value --grp [group_name] Sec
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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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Collecting logs (clplogcc command)
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Execution Result Section I Detailed
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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 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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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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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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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 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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Displaying the application resource
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Understanding floating IP resources
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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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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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RIPng tab Detailed settings of RIP
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Understanding CIFS resources Depend
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CIFS resource tuning properties Cac
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Permission Select one of following
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Understanding hybrid disk resources
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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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Install Path Within 1023 bytes Susp
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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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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 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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