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This section explains the steps that are necessary for recovering a failed node, either the Deployment Manager or an appserver node, using two different methods. Which method you use depends on individual requirements and general conditions of your environment (for example, backup storage cost, budget, software licenses for backup software, mean time to repair, service level agreements, and so forth). These recovery methods are as follows:
| Use a conventional file system backup. |
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| Use the backupConfig and restoreConfig command-line tools. |
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The recommended method for system recovery is a file system based backup and recovery because the backupConfig method does not address SSL keyring files and other property files. |
We assume that the failed node has been either repaired or replaced up to the point where the WAS prerequisites are met again (that is, hardware requirements are met and the operating system and all required OS fixes are installed). See the WAS hardware and software requirements at:
http://www.ibm.com/software/webservers/appserv/doc/latest/prereq.html
Regardless of the recovery method, always start with a re-install of WAS so that the system registry is set up correctly.
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Tip: Consider installing the software using response files to avoid errors during the (repeated) product and fixes installation and for a quick and silent (unattended) setup process. For detailed information about silent product installation, refer to the InfoCenter, search for silent install. |
