HP Volume Shadowing for OpenVMS

HP OpenVMS Alpha Version 8.3 and HP OpenVMS Version 8.3-1H1 for Integrity Servers SPD 82.35.13

Applications running on one or more nodes in an OpenVMS Cluster system share resources in a coor- dinated manner. While updating data, the OpenVMS Cluster software synchronizes access to shared re- sources, preventing multiple processes on any node in the cluster from uncoordinated access to shared data. This coordination ensures data integrity during concur- rent update transactions.

Mixed-architecture and mixed-version clusters that con- tain both Alpha systems and Integrity server systems are supported.

As of OpenVMS Version 8.3, cluster satellite boot sup- port on Integrity server systems is supported. This fea- ture provides support for Integrity-to-Integrity satellite booting. Cross-architecture booting (booting an Integrity satellite node from an Alpha boot server and vice-versa) is not supported.

Refer to the HP OpenVMS Cluster Software Software Product Description (SPD 29.78.xx) for more informa- tion.

HP Volume Shadowing for OpenVMS Alpha and In- tegrity servers performs disk mirroring operations us- ing a redundant array of independent disks (RAID-1) storage strategy. Volume Shadowing for OpenVMS is available for Alpha and Integrity server systems as both a separately licensed product, as well as a component of the Enterprise Operating Environment (EOE) on In- tegrity servers.

Volume Shadowing for OpenVMS provides high data availability for disk devices by ensuring against data loss that results from media deterioration or controller or device failure. This prevents storage subsystem com- ponent failures from interrupting system or application tasks.

Refer to the HP Volume Shadowing for OpenVMS Soft- ware Product Description (SPD 27.29.xx) for more in- formation.

HP RMS Journaling for OpenVMS

HP RMS Journaling for OpenVMS Alpha and Integrity servers is available as layered products and as a part of the Enterprise Operating Environment (EOE) on In- tegrity servers. Journaling enables a system manager, user, or application to maintain the data integrity of RMS ﬁles in the event of a number of failure scenarios. These journaling products protect RMS ﬁle data from becoming lost or inconsistent.

RMS Journaling provides the following three types of journaling:

•After-image journaling. Allows users to reapply modiﬁcations that have been made to a ﬁle. This

type of journaling allows users to recover ﬁles that are inadvertently deleted, lost, or corrupted.

•Before-image journaling. Allows users to reverse modiﬁcations that have been made to a ﬁle. This type of journaling allows users to return a ﬁle to a previously known state.

•Recovery-unit journaling. Allows users to maintain transaction integrity. A transaction can be deﬁned as a series of ﬁle updates on one or more ﬁles. If any failure occurs during the transaction, recovery-unit journaling rolls back the partially completed transac- tion to its starting point.

The binary kit for RMS Journaling ships with the OpenVMS Alpha and Integrity server distribution kits. To run the software, customers must purchase a license and documentation. Refer to the RMS Journaling for OpenVMS Software Product Description (SPD 27.58.xx) for more information.

HP Advanced Server for OpenVMS Alpha

HP Advanced Server for OpenVMS is supported on OpenVMS Alpha systems only. Advanced Server V7.3B for OpenVMS is the only version supported on Open- VMS Alpha Version 8.3.

Advanced Server is an OpenVMS-based network op- erating system (NOS) compatible with Microsoft net- working technology. The software lets you establish OpenVMS systems as servers to provide Windows desktop users (including Windows and Windows XP Professional) easy and efﬁcient access to OpenVMS ﬁle and print services. Desktop users can use Microsoft products and utilities such as Windows Explorer to ac- cess these resources shared over the network. Ad- vanced Server for OpenVMS can function as a ﬁle and print server for a small, isolated community of users or as the foundation of a large network distributed over a wide geographical area. The Advanced Server software also provides a ﬂexible system for network administra- tion and security, for both wide area networks (WANs) and local area networks (LANs).

Refer to the HP Advanced Server for OpenVMS Soft- ware Product Description (SPD 30.50.xx) for more in- formation.

HP PATHWORKS for OpenVMS (Advanced Server)

HP Pathworks for OpenVMS (Advanced Server), also known as Pathworks Advanced Server, is currently available for Alpha based systems only. Pathworks for OpenVMS Version 6.1 is the only supported version for OpenVMS Alpha Versions 7.3, 7.3-1 and 7.3-2. Path- works for OpenVMS Version 6.1 is not supported on OpenVMS Version 8.2 or higher.