DESCRIPTION when issuing the command to DECdfs for OpenVMS is a use the resource. DECnet for OpenVMS and DECdfs software uses DECnet-Plus layered product DECdns on OpenVMS VAX that provides OpenVMS users configurations running with the ability to use DECnet for OpenVMS or remote OpenVMS VAX, OpenVMS DECnet-Plus, and on OpenVMS Alpha, and OpenVMS I64 disks Alpha and OpenVMS I64 as if they were directly configurations running attached to the local DECnet-Plus. In order OpenVMS system. for DECdfs to use DECdns, DECdfs software provides there must be at least users and applications one DECdns server in the with transparent, high network. DECdns allows the performance file access name of the resource to be while using fewer CPU independent of its physical resources than standard location on the network. DECnet for OpenVMS and DECdfs systems throughout DECnet-Plus file access. the network can continue accessing a resource even Systems running DECdfs if the resource location is software can act as changed. "servers" or "clients" or DECdns is not available both. DECdfs servers make on OpenVMS Alpha and file resources available OpenVMS I64 configurations to systems running DECdfs running DECnet, but these client software. DECdfs configurations can use clients are able to use file DECdfs by specifying the resources of systems running node name where the resource DECdfs server software. The is located. file resources accessible through DECdfs can range The DECdfs client uses the in scope from a master file resource by means of the directory and all of its DFS$CONTROL MOUNT command. subordinate directories and This command specifies the files on a disk volume, to DECdns name by which the an individual file. The resource was registered, DECdfs server software enables communication assigns a unique name to between the client and the resource to be shared. the server, and creates In configurations where a pseudo-device on the DECdns (Distributed Name client system. The pseudo- Service) is supported, the device makes the remote DECdfs server registers the resource appear to the resource name with DECdns. client system as a local In configurations where disk. Users can then perform DECdns is not supported, the operations on the pseudo- DECdfs client must include device, and DECdfs handles the resource location name all of the network access and translation. February 2005 Features CLUSTER ENVIRONMENT The features of DECdfs for This layered product OpenVMS Version 2.4 include: is fully supported when o Support for OpenVMS Alpha installed on any valid and Version 8.2 licensed OpenVMS Cluster o Support for OpenVMS I64 configuration. The OpenVMS Version 8.2 Cluster configurations are fully described in the Restrictions Software Product Description o Files opened for write for OpenVMS Cluster Software are opened exclusively (SPD 29.78.xx). o Logical I/O is not SOFTWARE REQUIREMENTS supported o Installed files are not The following software is supported required: o The use of ACLs (Access o One of the following Control Lists) on DECdfs versions of the OpenVMS client devices is not operating system: supported. ACLs on served - OpenVMS Alpha Version files are not visible to 8.2 a DECdfs client. - OpenVMS I64 Version 8.2 HARDWARE REQUIREMENTS o One of the following Processors Supported network software DECdfs for OpenVMS Version products: 2.4 is supported on all - DECnet for OpenVMS systems running the versions - DECnet/OSI for OpenVMS of the OpenVMS operating system that are listed - DECnet-Plus for in the section "SOFTWARE OpenVMS REQUIREMENTS". OpenVMS Tailoring Memory Requirements The following OpenVMS DECdfs for OpenVMS Version classes are required for 2.4 will run properly full functionality of this with the minimum physical layered product: memory required by the o OpenVMS Required Saveset OpenVMS operating system and DECnet for OpenVMS o Network Support (Phase IV) or DECnet/OSI For more information or DECnet-Plus (Phase on OpenVMS classes and V). Refer to the Software tailoring, refer to the Product Descriptions for OpenVMS Operating System those products for memory Software Product Description requirements. (SPD 25.01.xx). 2 DISK SPACE REQUIREMENTS SOFTWARE LICENSING To install DECdfs for A license is required for OpenVMS Version 2.4, you each OpenVMS system on need the following free which the DECdfs for OpenVMS space on your system disk: software is to be installed o 4000 free blocks for an and executed. A DECdfs OpenVMS Alpha system license is required on: o 6000 free blocks for an o Each server node that OpenVMS I64 system registers available directories or files for This size is approximate; access and use by DECdfs the actual size may vary clients depending on your system o Each client node that environment, configuration, accesses and uses the and software options. directories or files on a DECdfs server GROWTH CONSIDERATIONS Each OpenVMS system may be The minimum hardware and licensed to use the full software requirements for functionality of DECdfs or any future version of this the client functionality product may be different only. A full functionality from the requirements for license grants the right the current version. to use both the client capabilities and the server ORDERING INFORMATION capabilities. The following table lists The software media and the appropriate licenses. documentation ship on the _____________________________ layered product CD-ROM that Full Func- is included in the OpenVMS System tionality Client Only Version 8.2 kit. DECdfs for _____________________________ OpenVMS Version 2.4 software OpenVMS I64 BA355AC BA424AC and documentation are also PP License included in the OpenVMS OpenVMS QL-37YA*-AA QL-37ZA*-AA Software Product Library Alpha Media and the OpenVMS Online OpenVMS VAX QL-VEQA*-AA QL-381A*-AA Documentation Library, Media________________________ respectively. Customers ordering a DECdfs server license will need to order a zero cost DECdfs media kit BA355AA to ensure proper tracking for software update eligibility purposes. Likewise DECdfs Client customers need to order the zero cost media license BA424AA as well. This software is furnished only under a license. For more information about 3 HP's licensing terms and SOFTWARE WARRANTY policies, contact your local This software is provided by HP office. HP with a 90-day comformance License Management Facility warranty in accordance Support with the HP warranty terms applicable to the license This layered product purchase. supports the OpenVMS License ©2005 Hewlett-Packard Management Facility. License Company. All rights units for this product are reserved. allocated on a CPU-capacity basis. For more information on the License Management Facility, refer to the OpenVMS Operating System Software Product Description (SPD 25.01.xx) or the OpenVMS Operating System documentation set. For more information on HP's licensing policies, contact your local HP office. SOFTWARE PRODUCT SERVICES A variety of service options are available from HP. For more information, contact your local HP office. YEAR 2000 READINESS This product is capable of accurately processing, providing, and/or receiving date data from, into, and between the twentieth and the twenty-first centuries, and the years 1999 and 2000, including leap year calculations, when used in accordance with the associated product documentation, and provided that all hardware, firmware, and software used in combination with the product properly exchange accurate date data with the product. 4