Sun Microsystems 820433510 manual Recreating the Domain Administration Server, To migrate the DAS

Basic Enterprise Server Commands

Recreating the Domain Administration Server

For mirroring purposes, and to provide a working copy of the Domain Administration Server (DAS), you must have:

■One machine (machine1) that contains the original DAS.

■A second machine (machine2) that contains a cluster with server instances running applications and catering to clients. The cluster is configured using the DAS on the first machine.

■A third backup machine (machine3) where the DAS needs to be recreated in case the first machine crashes.

Note – You must maintain a backup of the DAS from the first machine. Useasadmin backup-domain to backup the current domain.

▼To migrate the DAS

The following steps are required to migrate the Domain Administration Server from the first machine (machine1) to the third machine (machine3).

1Install the application server on the third machine just as it is installed on the first machine.

This is required so that the DAS can be properly restored on the third machine and there are no path conflicts.

a.Install the application server administration package using the command-line (interactive) mode. To activate the interactive command-line mode, invoke the installation program using the console option:

./bundle-filename -console

You must have root permission to install using the command-line interface.

b.Deselect the option to install default domain.

Restoration of backed up domains is only supported on two machines with same architecture and exactly the same installation paths (use same as-installand domain-root-diron both machines).

2Copy the backup ZIP file from the first machine into thedomain-root-diron the third machine.

You can also FTP the file.

3Execute asadmin restore-domaincommand to restore the ZIP file onto the third machine: asadmin restore-domain --filename domain-root-dir/sjsas_backup_v00001.zip domain1

You can backup any domain. However, while recreating the domain, the domain name should be same as the original.

36 Sun GlassFish Enterprise Server 2.1 Administration Guide • December 2008