ExpressCluster X 2.0 for Windows Reference Guide - Nec

Section III Maintenance information
Wait time for synchronized cluster startup
8. Upload the updated cluster configuration data from the Builder.
When the message “There is difference between the disk information in the configuration
information and the disk information in the server. Are you sure you want automatic
moification?” appears, select Yes.
9. Resume the cluster from the WebManager. If you stopped any group in step 6, start it.
Note:
If you resume the cluster from the WebManager, the error message “Failed to resume the
cluster. Click the Reload button, or try again later.” is displayed, but ignore it. This is
displayed because the new server has not been suspended.
10. Right-click the new server on the WebManager, and select Service and then Start.
11. When Off is selected for Auto Return in Cluster Properties, right-click the server where
ExpressCluster has been reinstalled by using the WebManager and select Recover.
12. When a mirror disk resource or hybrid disk resource exists in the resources used in the
new server and the Auto mirror recovery check box is not selected in Properties of the
cluster, copy the mirror disk or hybrid disk fully from Mirror Disk Helper.
13. Move group as necessary. When mirror disk or hybrid disk is being fully copied,
complete copying before moving.
Wait time for synchronized cluster startup
Even all servers in a cluster are powered on simultaneously, it does not always mean that
ExpressCluster will start up simultaneously on all servers. ExpressCluster may not start up
simultaneously after rebooting the cluster following shutdown. Because of this, one server waits
for other servers in the cluster to start.
By default, 5 minutes is set to the startup synchronization time. To change the default value, click
Cluster Properties in the Builder, click the Timeout tab, and select Synchronize Wait Time.
For more information, see the description for the “Timeout tab” in Chapter 3, “Function of
Builder” of this guide.
Changing the server configuration (add/delete)
Adding a server
To add a server, follow the steps below:
1. Make sure that the cluster is working properly.
2. Start the server to add. For using the shared disk, make sure the server to add is not
connected to the shared disk and then start the server to add.
Important:
To use the shared disk, do not connect the server to the shared disk before setting it up and
powering it off. Data on the shared disk may be corrupted.
3. Configure the settings that should be done before setting up the ExpressCluster Server on the
server to add. However, to use the shared disk, do not configure the settings for the disk in
this step.
Related Information:
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