Open%20VMS

1
Open VMS

• Instructor Dr. Mort Anvari
• Student Jiayuan Geng
• ID 99282
• Summer 2000

2
Objective

• An Overview of OpenVMS
• Technology used in this OS
• Market value of OpenVMS
• Future direction of OpenVMS

3
What is OpenVMS ?

• Virtual Memory System
• Multi-user, Multitasking, Multiprocessing
• Support Client/Server, Real-time,
• Distributed computing

4
VMS and OpenVMS

• Two name for same OS
• With the introduction of the Alpha platform in
  the early 90s, DIGITAL changed the name of VMS
  to OpenVMS in an effort to shake the common
  perception of VMS being a closed, proprietary
  operation system

5
History of OpenVMS

• Digital Equipment Corporation (DEC, or DIGITAL)
• The Principal designers were Dave Cutler and Dick
  Hustvedt
• First conceived in 1976, VMS version X0.5 was
  first released to customer in 1977 as the OS of
  VAX(Virtual Address eXtension)

6
OpenVMS and OpenVMS Alpha

• Two Platforms
• OpenVMS VAX
• 32-bit, multitasking, multiprocessing
• Support VAX, microVAX, VAXstation and
  VAXserver
• OpenVMS Alpha (AXP)
• 64- bit, multitasking, multiprocessing
• run on Alpha systems from DIGITAL, Compaq.

7
Processing and Scheduling

• OpenVMS VAX
• The basic unit of execution in OpenVMS VAX is the
  process.
• The maximum number of concurrent processes is
  8,192 per OpenVMS VAX system.
• OpenVMS Alpha
• The basic unit of execution in OpenVMS Alpha is
  the kernel thread.
• Each process can have up to 16 kernel threads.
• The maximum number of concurrent processes is
  16,384 per OpenVMS Alpha system

8
Processing and Scheduling--Priority

• Processes receive time to execute their images
  based on the priority.
• 32 priorities are recognized on OpenVMS VAX,
• 64 priorities are recognized on OpenVMS Alpha.
• Priorities 0 to 15 are for timesharing processes
  and applications that are not time critical.
• Priorities 16 to 32 on VAX and 16 to 63 on Alpha
  are for real-time processes.

9
Paging and Swapping

• OpenVMS uses paging and swapping to provied
  sufficient virtual memory for concurrently
  executing processes.
• Paging and swapping are also provided for
  processes whose memory requirements exceed
  available physical memory.
• The maximum working set size is 512 MB of memory
  for VAX and 4GB for Alpha.

10
OpenVMS Cluster Software

• OpenVMS Cluster software is available for Alpha
  and VAX systems as a separately licensed System
  Integrated Product(SIP)
• It provides a highly integrated OpenVMS
  computing environment that is distributed over
  multiple systems containing up to 96 nodes.

11
Distributed Computing Environment(DCE) Support

• DCE for OpenVMS serves as the basis for an open
  computing environment where networks of
  multi-vendor systems appear as a single system
  to the user.
• Users can locate and share information safely
  and easily across the entire enterprise

12
VMS Performance

• CY1999 Revenue 3.9B
• If ranked as Fortune 500 385
• Comparisons
• 3Com - 303/5.4
• Computer Associates - 335/4.7
• Hilton Hotels-380/4.0
• EMC -386/3.9

13
Market Leadership of OpenVMS

• 1 in Healthcare
• 90 of the worlds computer chips are built on
  OpenVMS run assembly lines
• 50 of the cellular telephone industry billing
  operations run on OpenVMS.
• 66 of worlds funds transfer operations occur on
  OpenVMS.
• Betwween OpenVMS and Tandem systems, about 90
  of the worlds stock exchanges run on one of
  these two systems.
• If you purchase a lottery ticket, the back-end
  system that is running that lottery is running
  OpenVMS

14
OpenVMS Customers
Millions rely on it today

• 450,000 systems installed
• Thousands of customers satisfied and growing
• Nearly 20 of customers are NEW to OpenVMS each
  year

15
OpenVMS AlphaServers rank 1 and 2 among users

• System Reliability
• System Software Robustness
• Ease of Use/Ease of Installation
• Application Software Costs

• Cost of Ownership
• System Software Costs
• Performance
• Maintenance Costs

Source Datapro Information Services, a
subsidiary of Gartner Group, Inc. 1998 User
Ratings Survey of Midrange Systems
16
OpenVMS Web Server Directions

• Apache
• Apache V 1.3.9 implementation on OpenVMS today
  (beta)
• Ship Apache V1.3.12 on OpenVMS in Sep 00 (with
  SSL)
• Keep OpenVMS Apache in sync with Apache Software
  Foundation
• Next OpenVMS release to include support for
• ASF V2.0, PHP, XML, Tomcat/JSP, UAF
  authentication, Full cluster Galaxy
  capabilities, additional partner tools (e.g web
  authoring tools..)
• Netscape Communicator V5
• Final release expected in the summer
• Continue to release base-levels of Mozilla (Web
  download)

17
OpenVMS eBusiness Directions

• Provide a set of complete enterprise solutions
  to
• Enable robust data serving for todays business
  environment
• Enhance current web enabling software and add to
  portfolio as appropriate
• Bring todays applications into the eBusiness
  context
• Deliver complete set of application integration
  middleware (Compaq and partner based)
• Create application hosting platforms for the
  applications of tomorrow
• In partnership with Oracle and other key
  eBusiness solution providers

18
OpenVMS Java Directions

• Java Development Kit (JDK) 1.1.8 is current
  release
• Beta release of JDK 1.2.2 is available for
  download! This is the latest version of Java
• Final release is scheduled for August/September
  and will support OpenVMS V7.1 and V7.2
• Beta release of Fast VM is scheduled for June
• Working to minimize the time between JDK
  availability on Tru64Unix and OpenVMS Alpha

19
OpenVMS Partnerships Key to Continued Success
Key Vertical Partners
Key Horizontal Partners
HealthcareCerner, SMS, IDX, Intersystems Telecomm
unicationsKSCL (formerly Kingston), DirecTV,
CMG, CGI, Telecordia ManufacturingPromis,
Consilium, Aspen Technologies, Domain Systems,
Ross Systems, MK Group Financial
ServicesDST/Catalyst, Eurex, Montran, GIFTS, OM
Technology, OMR Systems, Rolfe Nolan, Sanchez
, Wall Street Systems Lotteries Essnet,
Scientific Games Int. (SGI), GTECH
Database/Business Intelligence Oracle, SAS
Institute Management ToolsComputer Associates
DatametricsBMC, Raxco, Heroix Development
Environments Forte, IBI, BEA, Prolifics, IONA,
Cognos, CompuWare, Magic

20
Evolution

• Over a 20-year period, OpenVMS has experienced
  evolution in five areas
• From a system running on same 20 printed circuit
  boards to a single chip.
• From being propeietary to open.
• From running on CISC-based VAX to RISC-based
  Alpha systems.
• From being primarily a technical OS to a
  commercial OD, to a high availability
  mission-critical commercial OS.
• From time-sharing to a workstation environment,
  to a client/server computing style environment.