PRODUCT NAME:  VAX Distributed Name Service,         SSA 28.79.01-A
               Version 1.1

HARDWARE REQUIREMENTS 

Processor Support

VAX: VAX 6210, VAX 6220, VAX 6230, VAX 6240, VAX 8200, VAX 8250, 
     VAX 8300, VAX 8350, VAX 8500, VAX 8530, VAX 8550, VAX 8600, 
     VAX 8650, VAX 8700, VAX 8800, VAX 8810, VAX 8820, VAX 8830,
     VAX 8840, VAX 8974, VAX 8978
 
     VAX-11/750, VAX-11/780, VAX-11/785, VAX-11/782

MicroVAX: MicroVAX II, MicroVAX 2000, MicroVAX 3500/3600
 
VAXstation: VAXstation II, VAXstation 2000, VAXstation 3200/3500,
            VAXstation 8000
 
VAXserver:  VAXserver 3500/3600/3602

Processors Not Supported

VAX:   VAX-11/725, VAX-11/730

MicroVAX:  MicroVAX I
 
VAXstation: VAXstation I

Block Space Requirements (Block Cluster Size = 1):
 
Disk space required for installation:  7,000 blocks 
                                       (3,584,000 bytes)
 
Disk space required for use (permanent): 7,000 blocks 
                                         (3,584,000 bytes)
 
DNS requires 7000 blocks of disk space. 2000 blocks of disk space on 
the system disk is required. 5000 blocks of disk space is required
on the disk that will store the database. This can be the system disk 
or another disk on the system.
 
These counts refer to the disk space required on the system disk. The 
sizes are approximate; actual sizes may vary depending on the user's
system environment, configuration, and software options.
 
Communication devices as specified by DECnet-VAX (SPD 25.03.xx).
 
OPTIONAL HARDWARE
 
Additional communications devices as supported by DECnet-VAX 
(SPD 25.03.xx).
 
CLUSTER ENVIRONMENT
 
This layered product is fully supported when installed on any valid 
and licensed VAXcluster * configuration.  It is recommended that this 
product be installed on only one of the processors in the cluster.  
Refer to the Release Notes for a description of the Distributed Name 
Service on VAXcluster systems.
 
In order to configure some product specific attributes that must 
remain unique to each system, certain components of the product are 
stored in the system specific environment (SYS_$SPECIFIC:[SYSxxx]), or 
the VAX, MicroVAX or VAXstation processor on which the installation is 
performed.  The remaining components of the product, including some or 
all of the executable images will be installed common to all accessing 
systems.  The HARDWARE REQUIREMENTS sections of this product's 
Software Product Description and System Support Addendum detail any 
special hardware required by this product.

* V5.x VAXcluster configurations are fully described in the VAXcluster 
  Software Product Description (29.78.xx) and include CI, Ethernet and Mixed
  Interconnect configurations.

SOFTWARE REQUIREMENTS 
 
Operating System
 
VMS Operating System V4.6 - V5.0
 
MicroVMS Operating System V4.6 - V4.7
 
Layered Products 
 
DECnet VAX V4.6 - V5.0
 
VMS Tailoring
 
For VMS V5.x systems, the following VMS classes are required for 
full functionality of this layered product:

VMS Required Saveset
 
Network Support
 
Programming Support
 
System Programming Support
 
Secure User's Environment
 
Utilities
 
Miscellaneous Files

For more information on VMS classes and tailoring, refer to the VMS 
Operating System Software Product Description (SPD 25.01.xx).
 
MicroVMS Tailoring
 
For MicroVMS V4.x systems, the following components of MicroVMS are 
required for full functionality of this layered product.

Base System
 
Common Utilities
 
Secure User Environment
 
Program Development
 
System Programming

OPTIONAL SOFTWARE
 
None
 
GROWTH CONSIDERATIONS 
 
The minimum hardware and software requirements for any future version of
this product may be different from the minimum hardware and software 
requirements for the current version.
 
DISTRIBUTION MEDIA
 
Disk:  RX33 Floppy Diskette
 
Tape:  9-track 1600 BPI Magtape (PE), TK50 Streaming Tape

ORDERING INFORMATION
 
Software Licenses: QL-VERA*-**
Software Media: QA-VERA*-**
Software Documentation: QA-VERAA-GZ
Software Product Services: QT-VERA*-**
 
* Denotes variant fields. For additional information on available 
  licenses, services and media refer to the appropriate price book.

The above information is valid at time of release. Please contact your 
local DIGITAL office for the most the up-to-date information.