CAUTION

NOTE

Migrating to HP DCE 1.7

Migrating an HP DCE 1.6 Server on HP-UX 10.30 to HP DCE 1.7 on HP-UX 11.0

1.If you are migrating a security server system, stop secd using the dcecp -c registry stop replica-namecommand.

2.Stop DCE on the system, using the dce_config STOP command from the main menu; DFS will not run on HP DCE 1.6 or 1.7; if DFS is running, ignore any warnings concerning running processes.

Hewlett-Packard recommends that you create a single network source area (depot) containing HP-UX 11.0 and HP DCE 1.7 software, so you can simultaneously install HP-UX 11.0 and HP DCE 1.7. If you do not install HP-UX 11.0 and HP DCE 1.7 at the same time, your old HP DCE

1.6servers will be automatically started when your system reboots after HP-UX 11.0 installation completes. This is an unsupported configuration.

3.Prepare the network source area (depot) using swcopy. The depot should contain both HP-UX 11.0 and HP DCE 1.7 software.

4.Upgrade the system from HP-UX 10.30 to HP-UX 11.0. If you installed from a unified network source area as recommended above, installation of HP DCE 1.7 is complete.

If you did not install from a unified network source area, you must continue with Steps 5 through 7.

5.Perform this step only if you did not install HP-UX from a unified network source area as recommended above.

Stop DCE on the system, using the dce_config STOP command from the main menu.

6.Perform this step only if you did not install HP-UX from a unified network source area as recommended above.

Install HP DCE 1.7 as described in Chapter 4.

7.Perform this step only if you did not install HP-UX from a unified network source area as recommended above.

Restart DCE using the dce_config START command from the dce_config main menu or using DMC.

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Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual Migrating to HP DCE

UX DCE Software specifications

HP UX DCE Software, or Hewlett-Packard UNIX Distributed Computing Environment, represents a significant tool in the realm of distributed system architecture. Designed primarily for enterprise environments, HP UX DCE enhances the reliability, scalability, and manageability of applications over diverse networked systems.

One of the main features of HP UX DCE is its ability to integrate various computing platforms, enabling seamless communication and resource sharing across distributed nodes. This facilitates the creation of complex applications that can operate on a multitude of systems, thus enhancing operational flexibility. DCE employs standardized interfaces, which means applications written for one platform can run on any other platform that supports DCE, promoting cross-platform compatibility.

In terms of technologies, HP UX DCE utilizes Remote Procedure Calls (RPC) as a core feature. This mechanism allows different applications to communicate and invoke procedures on remote systems as if they were local calls. Additionally, DCE includes a robust security model that incorporates Kerberos for authentication, ensuring that communication between nodes remains secure and protected against unauthorized access.

Another significant characteristic of HP UX DCE is its distributed file system, which allows for transparent file access across different machines. The DCE File System (DFS) provides a unified namespace and manages data replication and consistency across distributed storage resources. This reduces the complexity of data management and enhances data availability.

HP UX DCE also supports a variety of programming languages, making it accessible for developers accustomed to different coding environments. This versatility encourages widespread adoption and innovation, as developers can leverage existing skills to create distributed applications.

Furthermore, HP UX DCE is built for high availability, ensuring that critical applications remain responsive even in the face of hardware or network failures. Its inherent component redundancy and fault-tolerant architecture are designed to minimize downtime, which is essential for mission-critical applications in enterprise scenarios.

In conclusion, HP UX DCE Software provides a comprehensive framework for developing, deploying, and managing distributed applications. Its core features such as RPC support, a secure authentication mechanism, a robust file system, and cross-platform compatibility make it a vital resource for organizations aiming to leverage distributed computing effectively. As enterprises evolve, HP UX DCE stands out as an influential solution in the dynamic landscape of distributed environments.