17.3.2 Installing HADB server and setting up an environment
Install HADB servers in the active system and the standby system and set up their environments. For details about how to install the HADB server and set up the environment, see 8. Building a System.
The following notes apply to HADB server installation and environment setup:
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Use the same version and revision for the HADB servers in the active system and the standby system.
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For details about how to set the environment variables, see 8.4 Setting environment variables. Note that you must specify the same values in the active system and the standby system for the following environment variables:
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ADBLANG
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TZ
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If the HADB server in the active system terminates abnormally in the cold standby configuration, that HADB server is restarted, but only after troubleshooting information has been collected. You must create directories for storing the troubleshooting information in the active system and the standby system.
In the following example, directory /HADB/adbinfo is created in the host's local file system:
mkdir -p /HADB/adbinfo ...1 chmod 755 /HADB/adbinfo ...2
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The HADB administrator uses the OS's mkdir command to create a directory.
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The OS's chmod command grants the privileges that are needed so that the HADB administrator can write data into this directory.
Files created in the directory for storing troubleshooting-information files are not deleted automatically. You must delete them manually once the information is no longer needed.
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- Note
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The HADB server's server directory (during installation and during operation) does not need to be the same in the active system and the standby system.