Migrating to HP DCE 1.7

Migration Paths

Migration Paths

HP DCE 1.7 supports four direct migration paths from HP-UX 10.01, 10.10, 10.20, and 10.30 to HP-UX 11.0. Earlier versions of HP DCE that run on versions of HP-UX before 10.01 can also be migrated to HP DCE 1.7, but not directly. The direct migraton paths are listed in Table 2-1.

Table 2-1

Supported Migration Paths to HP DCE Version 1.7

 

 

 

 

 

 

 

 

 

 

 

From

 

 

To

 

 

 

 

 

 

 

 

 

 

HP DCE Version

 

Running on

 

HP DCE Version

Running on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.3.1 or 1.4 client

 

HP-UX 10.01

 

1.7

HP-UX 11.0

 

 

 

 

 

 

 

 

 

 

1.4 server

 

HP-UX 10.01

 

1.7

HP-UX 11.0

 

 

 

 

 

 

 

 

 

 

1.4.1 server

 

HP-UX 10.10

 

1.7

HP-UX 11.0

 

 

 

 

 

 

 

 

 

 

1.4.1 client

 

HP-UX 10.10

 

1.7

HP-UX 11.0

 

 

 

 

 

 

 

 

 

 

1.5 server

 

HP-UX 10.20

 

1.7

HP-UX 11.0

 

 

 

 

 

 

 

 

 

 

1.5 client

 

HP-UX 10.20

 

1.7

HP-UX 11.0

 

 

 

 

 

 

 

 

 

 

1.6 server

 

HP-UX 10.30

 

1.7

HP-UX 11.0

 

 

 

 

 

 

 

 

 

 

1.6 client

 

HP-UX 10.30

 

1.7

HP-UX 11.0

 

 

 

 

 

 

 

 

 

HP DCE 1.7 does not support direct migration from versions of HP DCE

NOTE

 

 

that run on HP-UX 9.x (HP DCE 1.2, 1.2.1, and 1.4.2). However, you can

 

 

migrate from these versions by first migrating to HP DCE 1.3.1 or 1.4 on

HP-UX 10.01 and then migrating that system to HP DCE 1.7 on HP-UX 11.0.

If you have HP DCE/9000 Version 1.3.1, 1.4, 1.4.1, 1.5, or 1.6 installed, you can save your existing cell configuration and databases, install HP DCE/9000 Version 1.7, and then restore your former cell configuration. Or, you can discard your previous cell configuration and database information, update your systems to HP DCE 1.7, and configure a new cell from scratch. Both procedures are detailed in this chapter.

2-2

Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual Supported Migration Paths to HP DCE Version From Running on

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.