Sun Java System Application Server Enterprise Edition 8.1 2005Q2 High Availability Administration Guide

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## New Features and Improvements

The version of HADB provided with Sun Java System Application Server Enterprise Edition 8.1 has many new features and improvements.

HADB management is improved by changing the underlying components of the management system. The old `hadbm` interface functions are maintained with minor modifications. These changes also remove the dependency on SSH/RSH.

The management agent server process (`ma`) constitutes a domain and keeps the database configuration in a repository. The repository information is distributed among all agents.

The following topics provide more details:

- General Improvements

- Specific Changes

### General Improvements

This version of HADB has the following general improvements:

- HADB no longer requires SSH/RSH.

- Administrator password for HADB management enhances security.

- Automatic online upgrade to future versions.

- Dependency on a single host is removed.

- Heterogeneous configurations of the database is supported. The device paths and history paths can be set individually.

- Ability to manage multiple platforms uniformly.

### Specific Changes

This version of HADB includes the following changes from the previous version.

- UDP multicast is now required for network configuration.

- The management agent, `ma`, is now required to be running on all HADB hosts.

- New `hadbm` commands for domain management: `hadbm createdomain, hadbm deletedomain, hadbm extenddomain, hadbm reducedomain, hadbm listdomain, hadbm disablehost`. New commands for package management: `hadbm registerpackage, hadbm unregisterpackage, hadbm listpackage`

- All `hadbm` commands have the following new options:

  - `adminpassword`

  - `adminpasswordfile`

  - no-adminauthentication

  - `agent`

  - `javahome`

  Changes made to `hadbm create`:

  - New options:

    - `no-clear`

    - `no-cleanup`

    - `package`

    - `packagepath`

    - `agent`

    Extended options

    - `hosts` (registers hosts in the domain).

    - `set`

    Options removed:

    - `inetd`

    - `inetdsetupdir`

    - `configpath`

    - `installpath`

    - `set TotalDataDevideSizePerNode`

    - `set managementProtocol`

    Modified: `devicesize` is now optional, not required.

  The `hadbm startnode` and `hadbm restartnode` commands' `startlevel` option has a new value, `clear` .

  Changes made to `hadbm addnodes`: New options: `set`, `historypath`, `devicepath`. The `inetdsetupdir` option was removed.

  Changes made to `hadbm get` and `hadbm set`: New attributes are `historypath` (heterogeneous path for history files) and `packagename`. Attributes eliminated are: `managementProtocol`, `TotalDeviceSizePerNode`, `installpath`, and `syslogging`.

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