HP OpenVMS I64 Operating Systems Disk and Tape Volumes, Business and Integration Technologies

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

Record Management Services (RMS)

RMS is a set of I/O services that helps application pro- grams to process and manage files and records. Al- though it is intended to provide a comprehensive soft- ware interface to mass storage devices, RMS also sup- ports device-independent access to unit-record devices.

RMS supports sequential, relative, and indexed file or- ganizations in fixed-length or variable-length record for- mats. RMS also supports byte stream formats for se- quential file organization.

RMS record access modes provide access to records in four ways:

•Sequentially

•Directly by key value

•Directly by relative record number

•Directly by record file address

RMS also supports block I/O operations for vari- ous performance-critical applications that require user- defined file organizations and record formats.

RMS promotes safe and efficient file sharing by pro- viding multiple file access modes and automatic record locking (where applicable). RMS offers the options of enabling global buffers for buffer sharing by multiple pro- cesses.

RMS utilities aid file creation and record maintenance. These utilities convert files from one organization and format to another; restructure indexed files for storage and access efficiency; and reclaim data structures within indexed files. These utilities also generate appropriate reports.

For systems that have DECnet or DECnet-Plus in- stalled, RMS provides a subset of file and record man- agement services to remote network nodes. Remote file operations are generally transparent to user programs.

Commands such as EDIT, CREATE, COPY, TYPE, and PRINT allow users to manipulate RMS records within RMS files at the DCL command level.

Disk and Tape Volumes

The system manager can organize disk volumes into volume sets. Volume sets can contain a mix of disk device types and can be extended by adding volumes. Within a volume set, files of any organization type can span multiple volumes. Files can be allocated to the set as a whole (the default) or to specific volumes within the set. Optionally, the system manager can allocate portions of indexed files to specific areas of a single disk or to specific volumes in a volume set.

The system manager can place quotas on a disk to con- trol the amount of space individual users can allocate. Quota assignment is made by UIC and can be controlled for each individual volume set in the system (or for each individual volume if the volume is not part of a set).

The system manager can cache disk structure infor- mation in memory to reduce the I/O overhead required for file management services. Although not required to do so, users can preallocate space and control auto- matic allocation. For example, a file can be extended by a given number of blocks, contiguously or noncon- tiguously, for optimal file system performance.

The system applies software validity checks and check- sums to critical disk structure information. If a disk is improperly dismounted because of user error or system failure, the system rebuilds the disk’s structure informa- tion automatically the next time the disk is mounted. The system detects bad blocks and prevents their reuse once the files to which the blocks were allocated are deleted. On DIGITAL Storage Architecture (DSA) disks, the disk controller detects and replaces bad blocks au- tomatically.

The system provides 255 levels of named directories and subdirectories whose contents are alphabetically or- dered. Device and file specifications follow HP conven- tions. Users can use logical names to abbreviate the specifications and to make application programs device and file name independent. Users can assign a logical name to an entire specification, to a portion of a speci- fication, or to another logical name.

OpenVMS supports multivolume magnetic tape files with transparent volume switching. Access positioning is done either by file name or by relative file position.

E-BUSINESS AND INTEGRATION TECHNOLOGIES

The HP OpenVMS e-Business and Integration Infras- tructure Package provides key Internet, e-business, and integration software technologies that enhance the OpenVMS Alpha and OpenVMS for Integrity servers operating systems and enable the development of e- business and enterprise integration solutions. These technologies are bundled with the OpenVMS Alpha or OpenVMS for Integrity servers operating systems. Sev- eral of the components are additionally bound by an open source software license.

The following components are included on the e- Business and Integration Infrastructure Package on OpenVMS Alpha:

•HP Secure Web Server (SWS), including support for the popular scripting capabilities: mod_PHP, mod_ Perl and Perl, and JavaServer Pages (Tomcat)

•HP Secure Web Browser (SWB)

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Contents October DescriptionUser Environment Program Development Environment Librarian Utility Macro CompilerPosix Threads Library HypersortSystem Management Environment Management Agents for OpenVMS HP Availability ManagerDECamds HP OpenVMS Management StationGraphical Configuration Manager for OpenVMS Enterprise Capacity and Performance AnalyzerPerformance Data Collector Class Scheduler for CPU SchedulingSecurity Operations SysmanInstant Capacity Government Security RatingsHP Utility Pricing on OpenVMS for Integrity Servers TiCAP Temporary iCAPOperating System Environment Very Large Memory VLM FeaturesPay per use Processes and SchedulingSymmetric Multiprocessing SMP DECdtm ServicesInterprocess Communication Universal Serial Bus Support AlphaServersTerminal Server Products Integrity Server SystemsExtended File Cache XFC Performance FeaturesInput/Output Virtual I/O Cache Alpha onlyDisk and Tape Volumes Business and Integration TechnologiesHP OpenVMS Cluster Software Associated ProductsHP Galaxy Software Architecture on OpenVMS Alpha HP Advanced Server for OpenVMS Alpha HP Volume Shadowing for OpenVMSHP RMS Journaling for OpenVMS HP Pathworks for OpenVMS Advanced ServerHP DECram for OpenVMS HP TCP/IP Services for OpenVMSHP DECnet-Plus and HP DECnet Software Support for OSF/Motif and X Window System Standards Conformance to StandardsDistributed Computing Environment DCE Support Standards Supported by OpenVMSInstallation Network Installation and UpgradeVirtual Media vMedia Polycenter Software InstallationVirtual Connect Wbemcim Test Package and DiagnosticsVmsinstal DECwindows Motif for OpenVMS Alpha Disk Space Requirements Layered Product Disk Space RequirementsDocumentation Memory Space RequirementsDistribution Media Ordering Information Growth ConsiderationsSource Listings Ordering OE License Upgrades Software Licenses Sold with SystemAlpha CD Media and Online Documentation OE License Upgrade OptionsOpenVMS Alpha Ordering Information OpenVMS Hardcopy Documentation SetsOpenVMS Alpha Software Products Library SPL CD Offerings Software Product ServicesOpenVMS Alpha and Integrity servers Source List- ings Kit Software LicensingSoftware License Information Alpha and Integrity servers Product Name Description SPDVMS System Support ServicesOpenVMS Alpha License Information Systems Supported Integrity Server Systems SupportedXMI Bus-Based Systems Alpha Systems SupportedTURBOchannel Bus-Based Systems PCI Bus-Based SystemsAppendix a OpenVMS for Integrity servers Dssi Bus-Based SystemsModular Computing Component LAN OptionsStorage and Network Combo Cards Parallel Scsi Storage OptionsSerial Attached Scsi SAS Storage Options Tape DevicesTerminals and Terminal Line Interfaces DisksPBXRW-JC Tapes Networks Storage Servers SwxnaEnterprise Storage Arrays Controllers and AdaptersSynchronous Controllers Hubs and SwitchesAsynchronous Terminal Controllers Graphics Options Dapca DefpaDapba DglpbMemory Channel Options Adapters and SwitchesCI Options MiscellaneousSoftware Warranty

OpenVMS I64 Operating Systems specifications

HP OpenVMS I64 is a robust operating system originally developed by Digital Equipment Corporation and later acquired by Hewlett-Packard. It stands for "Open Virtual Memory System" and is designed to run on Intel Itanium (I64) architecture, offering high reliability and performance for mission-critical applications.

One of the defining features of OpenVMS is its focus on availability and fault tolerance. It supports clustering, allowing multiple nodes to function together as a single system. This feature ensures that if one node fails, others can continue processing, minimizing downtime. Furthermore, OpenVMS employs a sophisticated method of process management, enabling the efficient handling of multiple tasks and processes simultaneously.

Security is a paramount characteristic of OpenVMS. The system implements a multi-layered security architecture, encompassing user authentication, access controls, and logging features that protect against unauthorized access. It also offers role-based access control, which streamlines permissions and bolsters overall system security.

OpenVMS is compatible with various programming languages and development tools, which makes it a versatile choice for developers. It supports languages like C, C++, COBOL, and Pascal, as well as development environments that facilitate the creation of sophisticated applications. Its comprehensive suite of development and debugging tools enhances productivity and ease of use for software engineers.

Another notable feature is its support for legacy applications. OpenVMS provides compatibility with older systems, allowing organizations to modernize their infrastructure without losing valuable investments in legacy code. This backward compatibility is vital for enterprises that require long-term system integrity and data consistency.

The operating system also features an advanced file system known as the Virtual Memory System (VMS) file system, which supports a variety of file types and efficient data management. The system is designed for high-performance I/O operations, which is crucial for applications that require quick data access and processing.

In terms of networking, OpenVMS supports a range of communication protocols, making it suitable for integration into complex networked environments. Its TCP/IP stack enables seamless connectivity with other platforms, facilitating collaboration in mixed environments.

Overall, HP OpenVMS I64 stands out for its reliability, security, and performance, making it an ideal choice for enterprises demanding a robust operating environment capable of handling their critical workloads. Its combination of advanced features and software support ensures that organizations can continue to innovate while relying on a stable foundation.
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