Notes on Cell Administration

Administering CDS

Administering CDS

This section contains information on administering CDS that supplements the information in the OSF DCE Administration Guide —Core Services and OSF DCE Administration Reference.

Deleting a Clearinghouse

Before removing a CDS server clearinghouse, you must move or delete any directories having master replicas in the clearinghouse. If you do not do this, the clearinghouse removal operation fails, thereby preventing unintended loss of data.

Appropriate administration commands for clearinghouses and directories can be used to identify, move, or delete master replicas as required, in order to remove a clearinghouse.

Skulking Directories

CDS propagates updated name space information among all directory replicas with periodic automatic skulks so that consistent information is available throughout the name space. To conserve network bandwidth, these automatic skulks take place only every few hours.

Manual changes to the name space, such as the creation or deletion of any name space object or directory, should always be followed by manual skulks to immediately propagate these changes and additions. This will avoid errors (such as entry not found) which can arise when clients access directory replicas which have not yet received updates for recently changed objects.

Note that skulks can take a few minutes to reach all parts of a cell, so do not expect instant availability of updated information.

Planning and Configuring HP DCE 1.7

7-7

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HP UX DCE Software manual Administering CDS, Deleting a Clearinghouse, Skulking Directories
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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.

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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.
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