DECdfs for OpenVMS, Version 2.4A

ManualsBrandsHP ManualsSoftwareOpenVMS 8.4

Software

Product

Description

PRODUCT NAME: DECdfs for OpenVMS SPD 28.78.10

Version 2.4A

DESCRIPTION

DECdfs for OpenVMS is a DECnet for OpenVMS and

DECnet-Plus layered product that provides OpenVMS

users with the ability to use remote OpenVMS VAX,

OpenVMS Alpha, and OpenVMS for Integrity server

disks as if they were directly attached to the local Open-

VMS system.

DECdfs software provides users and applications with

transparent, high performance ﬁle access while using

fewer CPU resources than standard DECnet for Open-

VMS and DECnet-Plus ﬁle access.

Systems running DECdfs software can act as "servers"

or "clients" or both. DECdfs servers make ﬁle resources

available to systems running DECdfs client software.

DECdfs clients are able to use ﬁle resources of systems

running DECdfs server software. The ﬁle resources ac-

cessible through DECdfs can range in scope from a

master ﬁle directory and all of its subordinate directo-

ries and ﬁles on a disk volume, to an individual ﬁle. The

DECdfs server software assigns a unique name to the

resource to be shared.

In conﬁgurations where DECdns (Distributed Name Ser-

vice) is supported, the DECdfs server registers the re-

source name with DECdns. In conﬁgurations where

DECdns is not supported, the DECdfs client must in-

clude the resource location name when issuing the com-

mand to use the resource.

DECdfs software uses DECdns on OpenVMS VAX con-

ﬁgurations running DECnet for OpenVMS or DECnet-

Plus, and on OpenVMS Alpha and OpenVMS for In-

tegrity server conﬁgurations running DECnet-Plus. In

order for DECdfs to use DECdns, there must be at least

one DECdns server in the network. DECdns allows the

name of the resource to be independent of its physical

location on the network. DECdfs systems throughout

the network can continue accessing a resource even if

the resource location is changed.

DECdns is not available on OpenVMS Alpha and Open-

VMS for Integrity server conﬁgurations running DECnet,

but these conﬁgurations can use DECdfs by specifying

the node name where the resource is located.

The DECdfs client uses the resource by means of the

DFS$CONTROL MOUNT command. This command

speciﬁes the DECdns name by which the resource was

registered, enables communication between the client

and the server, and creates a pseudo-device on the

client system. The pseudo-device makes the remote re-

source appear to the client system as a local disk. Users

can then perform operations on the pseudo-device, and

DECdfs handles all of the network access and transla-

tion.

Features

The features of DECdfs for OpenVMS Version 2.4A in-

clude:

• Support for OpenVMS Alpha Version 8.3

• Support for OpenVMS for Integrity servers Version

8.3

• Support for OpenVMS for Integrity servers Version

8.2-1

• Support for OpenVMS Alpha Version 8.2

• Support for OpenVMS for Integrity servers Version

8.2

Restrictions

• Files opened for write are opened exclusively

• Logical I/O is not supported

September 2006

Summary of content (4 pages)

PAGE 1
Software Product Description PRODUCT NAME: DECdfs for OpenVMS Version 2.4A DESCRIPTION DECdfs for OpenVMS is a DECnet for OpenVMS and DECnet-Plus layered product that provides OpenVMS users with the ability to use remote OpenVMS VAX, OpenVMS Alpha, and OpenVMS for Integrity server disks as if they were directly attached to the local OpenVMS system.
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DECdfs for OpenVMS Version 2.4A SPD 28.78.10 • Installed files are not supported • Network Support • The use of ACLs (Access Control Lists) on DECdfs client devices is not supported. ACLs on served files are not visible to a DECdfs client. For more information on OpenVMS classes and tailoring, refer to the HP OpenVMS Version 8.3 for Alpha and Integrity Servers Software Product Description (SPD 82.35.xx). HARDWARE REQUIREMENTS DISK SPACE REQUIREMENTS Processors Supported DECdfs for OpenVMS Version 2.
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DECdfs for OpenVMS Version 2.4A SPD 28.78.10 • Each Unlimited Use License allows any number of individuals to use HP DECdfs at the same time. Product binary kits and online documentation are delivered on consolidated media libraries. Delivery model varies by platform. For HP OpenVMS Integrity: Each Per-processor Core (PCL) License allows any number of individuals to use HP DECdfs at the same time, with one PCL license required for each processor core running OpenVMS.
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DECdfs for OpenVMS Version 2.4A SPD 28.78.10 The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.