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Wednesday, April 25, 2018

Importance Of Cellinit.ora and Cellip.ora Files

Importance Of Cellinit.ora and Cellip.ora Files


-Cellinit.ora and Cellip.ora

After Oracle Exadata storage server is configured, the database server host must be configured with the cellinit.ora and the cellip.ora files to use the cell and compute nodes.

These files are located in the /etc/oracle/cell/network-config directory, and are resided on compute nodes as well as cell nodes.

These configuration files contain IP addresses, not host names.

cellinit.ora - This file contains the database IP addresses.
cellip.ora - This file contains the storage cell IP addresses.

Example:

Quarter RAC exadata machine contains 2 compute (DB) nodes and 3 cell (Storage) servers.

192.168.70.23 and 192.168.70.24 belongs to Compute Nodes.
192.168.71.27, 192.168.71.28 and 192.168.71.29 belongs to Cell Servers.

cat /etc/oracle/cell/network-config/cellinit.ora
ipaddress=192.168.70.23,192.168.70.24

cat /etc/oracle/cell/network-config/cellip.ora
cell="192.168.71.27"
cell="192.168.71.28"
cell="192.168.71.29"

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