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Oracle Tips by Burleson |
Oracle10g Grid Computing
with RAC
Chapter 15 - RAC Migration
Topics
Adding Nodes
at the Vendor Clusterware Layer in UNIX/Linux
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That the
nodes are up
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That the
nodes are accessible by way of the network
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That the
user has write permission to create the CRS home on the new nodes
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That the
user has write permission to the OUI inventory in the oraInventory
directory on UNIX/Linux or Inventory directory on Windows
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When the OUI
detects that the new nodes don’t have an inventory location, then:
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On
UNIX/Linux platforms the OUI displays a dialog asking you to run the
oraInstRoot.sh script on the new nodes
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On Windows
platforms the OUI automatically updates the inventory location in the
proper Registry key (no special script is required)
When any
verifications fail, the OUI will re-display the Specify Cluster Nodes
for Node Addition screen with the Status column in both upper and
lower tables indicating the errors that occurred. Correct the errors
or if correction is not possible, deselect the nodes that have errors
and proceed. However, if the errors are on existing nodes, they cannot
be deselected; the errors must be corrected if nodes are already part
of your CRS cluster before you can proceed with node addition. When
all the checks succeed, then the OUI Node Addition Summary screen is
displayed.
It is a good
practice to install CRS on every node in the cluster that has vendor
clusterware installed.
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The Node
Addition Summary screen displays information about the products that
are installed in the CRS home that is being extending to the new
nodes, the information shown is:
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The source
directory for the add node process, which should be the CRS home
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The private
node names (interconnects) that where entered for the new nodes
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The new
nodes that where entered
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The required
space and the available space on the new nodes
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The
installed products listing the products that are installed in the
existing CRS home.
If
everything is satisfactory, then click Next and the OUI displays the
Cluster Node Addition Progress screen.
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The purpose
of the Cluster Node Addition Progress screen is to show the status of
the cluster node addition process. The table shown on this screen
displays two columns showing the phase of the node addition process
and the phase's status according to the following platform-specific
content:
For
UNIX/Linux-based systems, this screen shows four OUI phases:
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