BEGINNING AND INTERMEDIATE STEPS ON PREPARING BLACKBOARD SYSTEM CONNECTIVITY FOR AUTOMATED REDUNDANCY/FAIL-OVER CAPABILITY STRATEGY, IMPLEMENTATION, DOCUMENTATION

BEGINNING AND INTERMEDIATE STEPS ON PREPARING BLACKBOARD SYSTEM CONNECTIVITY

FOR AUTOMATED REDUNDANCY/FAIL-OVER CAPABILITY

STRATEGY, IMPLEMENTATION, DOCUMENTATION

ABOUT THIS PRESENTATION

This session will show you what GW has done to prepare its connectivity for redundancy and fail-over. Much of what we discuss can be applied at schools looking for more robust and modularized connectivity but who are not planning on implementing a fail-over strategy soon. We will go over different versions, permutations and reasoning behind our current setup as many of these can offer useful insight for the wide range of circumstances that Bb schools represent. This session is more or less a sequel to the fail-over server presentation given by GW last year.

The George Washington UniversityThe “one-card” system had been in place for seven years with a

large existing infrastructure, multiple privileges & accounts and approximately 1000 devices including IPCs, terminal servers

Security 379 Activity 43POS68 Vending 57MDTs120Laundry 51VTS 8Copiers/Microfiche 48

Interfaces: Follett JDA Bookstore POS, Pharos Uniprint, MDT, Catapult POS, Campus Video Solutions TIABlackboard Transaction System –UNIX Edition,

OUR SERVER

Just kidding!

Why should you work on your connectivity.

Money Money Money Face

How much does your system take-in in one day.

Look at it backwards. What is real cost of precautions in terms of daily revenue.

What happens to that money if system is down- it doesn’t get spent through you.

Liability and safety concerns

Money Money Money

Face

Imagine how you will look if you haven’t been pushing for upgrades, redundancy, stable and re-routable communications.

Imagine how your boss will look.

Do you want to be the one that didn’t seem to be concerned?

DIVERSITY OF LEGACY DIVERSITY OF LEGACY COMMUNICATIONS COMMUNICATIONS

AND THEIR PROBLEMSAND THEIR PROBLEMS

DIVERSITY OF LEGACY COMMUNICATIONS AND THEIR PROBLEMS

Terminal Servers Line Drivers Dry pairs Modems RS 485 RS 232 Serial FDIs (BSI) Private

connections

DIVERSITY OF LEGACY COMMUNICATIONS AND THEIR PROBLEMS

Special connectors- inventory and repair procedures Proprietary devices – inventory and repair cycling Multiple service cost models – IP dedicated unconditioned house pairs

(dry pairs) Dedicated unconditioned Phone Co.

pairs (dry LADA circuits) Analog house pairs (dial tone). Analog Phone Co. pairs (dial tone). Documentation/accounting difficulties. Specialized Technical training/familiarization Lots of single points of failure.

THE QUICK THE QUICK DISCONNECTDISCONNECT

THE QUICK DISCONNECT

This was our first step to making the system more modular. We had bought a second server and it was configured. Data migration, patching, database update intervals were big issues but not the focus here.

We realized that even though we had plans to cut down the times and uncertainty of these other issues, to swap out our server, even if we put it in the same place would take us a long time of plugging and unplugging.

The potential for mistakes was big.


FIREWALLDATACARD

UNIPRINTNET SWITCH

UNCOND.

ANALOG

QUICK DISCONNECT CABLE TO INFRASTRUCTURE

PERMANENT INTERNAL CABINET INTERCONNECT WIRING

F I B E R

- -----25 PR.---- LOCAL COPPER COPPER

(AMPHENOL)

So we came up with this plan of consolidating all of the outside connections onto one point.

In order to do this we had to add something that is the bane of any technicians existence. We had to add extra connection points.

Normally this would have been a really bad thing, but in this case, it cleaned up all of our wiring and made out switchover time really short -- 10 minutes.


FIREWALLDATACARD

UNIPRINTNET SWITCH

UNCOND.

ANALOG


PERMANENT INTERNAL CABINET INTERCONNECT WIRING

F I B E R


(AMPHENOL)

1 ANALOG CONNECTION BLOCK2 DRY CIRCUIT CONNECTION BLOCK3 MEDIA CONVERTER4 MEDIA CONVERTER5 DATACARD JACK6 NETWORK SWITCH JACK7 UNIPRINT GATEWAY (LOCAL-SERIAL)8 SERVER1 FIREWALL CONNECTION 9 SERVER2 FIREWALL CONNECTION

DRY CIRCUIT CONNECTION BLOCK (RJ12)1-4 GWORLD LOOP LAD CIRCUITS5 BSI6 TEST LAD

QUICK CONNECTION WIRING DIAGRAMConnection mounting board inside of Server 1and Server 2 cabinets

ANALOG CONNECTION BLOCK (RJ12)1-8 MDT MODEM 9 BLACKBOARD SUPPORT - SERVER1 10 BLACKBOARD SUPPORT - SERVER211 TEST MDT12-13 OCP MODEM


WHAT’S SO GREAT WHAT’S SO GREAT ABOUT IP?... ABOUT IP?...

AND WHY SHOULD I PAY FOR AND WHY SHOULD I PAY FOR IT?IT?

WHAT’S SO GREAT ABOUT IP AND WHY SHOULD I PAY FOR IT.

Your networking people will understand it.

Your connections can be repaired and replaced more easily

Many of your circuit paths may already exist.

Better reporting by Bb IP devices and network devices

You may be able to share costs with other departments for Techs, equipment and circuit paths.


Fewer service cost models.

You can incorporate or help develop universally applied documentation.

Potential for redundancy and incorporation into Networking’s overall plans.

Potential for sharing exclusive connections with other vital services.

Get yourself in line with where most of the future development is going.

It’s all going that way anyway.

Universal edition is coming to a Campus near you.

One of the great features of the coming Universal edition is the fact that you will no longer need an NP. The NP is an expensive, proprietary, hard to configure and connect, potential single point of failure. Bb, I’m sure, and GWU in any case will be working on redundancy and failover strategies for the Universal Edition’s new NP configuration. Dependency on serial communications can prevent you from being able to take advantage of some of these features.


Incentives- Methods of attack

Plans can coincide w/future upgrades of system Propose and if needs be – let it get shot down Mention other systems may be able to take

advantage – get allies. IP -Its all gonna go that way anyway. Maybe you can start a wider initiative and make

yourself look really good.


CONVERSION TO CONVERSION TO IPCONVERTERSIPCONVERTERS

CONVERSION TO IPCONVERTERS

CAMPUS BUILDINGGWORLD HUB

485 CONV.

LINE DRIVER

SECURITY SECURITY SECURITY

LAUNDRY COPIER OTHER

RJ45JACK

RJ45JACK

RJ45JACK

RJ45JACK

MEDIA CONV.

REMOTE IP CONV.

RJ45

485BLDGNET

FIBER LINE TO CAMPUS FIBER NET

PATCH CABLES

QUICK SWITCH INVOLVES REMOVING 485 CONVERTER’S RJ45 PLUGS FROM JACKS FROM AND INSERTING PLUGS FROM IP CONVERTER

QUICK SWITCH GWORLD IN-BUILDING CONNECTION SCHEME (GENERAL)

IP

BJK 09/29/01

For conversion of our serial, RS485 circuits over to IP connections using IP Converters, we used a staged approach where, with a very short down time, we first converted the existing connections to be modular . We created some inexpensive intermediate connector assemblies that allowed us to continue running over the old connectivity system until the pieces for the IP connectivity were in place. Then, with another very short downtime, we switched over. The hidden beauty of this conversion method is that if for any reason you have a problem with the switch over to IPConverters, you can fall back to your original hardware in seconds.



GWORLD REMOTE HUBSITE RJ45 INSTALLATION(PRE-CONVERSION)

DEVICE CABLES

485 CONVERTER’S SINGLE TB10 CAN HAVE MULTIPLE DEVICE CABLES CONNECTED.TERMINALS 1-5 AND 6-10 ARE DUPLICATE SETS.STANDARD WIRING

TB10 PIN CAT 5 COLOR BELDEN COLOR FUNCTION1 / 6 WH/OR WHITE R-2 / 7 OR/WH GREEN R+3 / 8 GRN/WH SHEILD SHEILD4 / 9 WH/BU RED T-5 /10 BU/WH BLACK T+

10 9 8 7 6 5 4 3 2 1

485 CONVERTER’S TB10

CURRENT RS485 CONVERTER HOOK UP


10 9 8 7 6 5 4 3 2 1

485 CONVERTER’S TB10

RJ45PLUGS

TB10 PIN CAT 5 WIRE COLOR FUNCTION1 / 6 WH/OR R-2 / 7 OR/WH R+3 / 8 GRN/WH SHEILD4 / 9 WH/BU T-5 /10 BU/WH T+

Create intermediate cable assemblies.


RJ45 PIN CAT 5 BELDEN FUNCTION1 WH/OR WHITE R-2 OR/WH GREEN R+4 BU/WH BLACK T+5 WH/BU RED T-6 GRN/WH SHEILD SHEILD3* N/A N/A N/A

RJ45 jacks should be set as uniformly as possible (preferably in rows) and separated by loop and marked for loop number and address(s). Wires can be either cat 5 or Belden type. Color codes will have two standards.485 converter pins can hold more than one wire as depicted, RJ45 jacks should not (one cable per RJ45 jack).

RJ45 SCREW TERNINAL

JACK

RJ45 SCREW TERNINAL

JACK

1

2

3

4

8

7

6

5

DEVICE CABLES

Make it modular.


CAMPUS BUILDINGGWORLD HUB

485 CONV.

LINE DRIVER

SECURITY SECURITY SECURITY

LAUNDRY COPIER OTHER

RJ45JACK

RJ45JACK

RJ45JACK

RJ45JACK

MEDIA CONV.

REMOTE IP CONV.

RJ45

485BLDGNET

FIBER LINE TO CAMPUS FIBER NET

PATCH CABLES

QUICK SWITCH INVOLVES REMOVING 485 CONVERTER’S RJ45 PLUGS FROM JACKS FROM AND INSERTING PLUGS FROM IP CONVERTER

QUICK SWITCH GWORLD IN-BUILDING CONNECTION SCHEME (GENERAL)

IP

BJK 09/29/01

The Meshed NetworkThe Meshed Network

The Meshed Network

Work around power outages and connectivity problems Can be made to be self-re-routable Allows relatively easy connectivity for location changes of

components of you system (server, carding, administrations stations)

Network metrics, monitoring, balancing

The Meshed Network

IP routers in a meshed network

IP routers in a meshed network

The Meshed NetworkThe Meshed NetworkWith repeaters for common leg runsWith repeaters for common leg runs

The Meshed Network

With repeaters for common leg runs

The Meshed Network

With repeaters for common leg runs

IP Router switches with repeaters for common leg runs

BALONEY HALLSWITCH ROOM

EXISTINGSWITCH

BALONEY HALLSWITCH ROOM

EXISTINGSWITCH

Loop 1

Loop 2

Loop 3

Loop 4

COMMON HUB OTHER HOPS BALONEY HALLSWITCH ROOM

EXISTINGSWITCH

Loop 1

Loop 2

Loop 3

Loop 4

COMMON HUB OTHER HOPS

REPEATER

FIRST STEP

Loop 1

Loop 2

Loop 3

Loop 4

COMMON HUB OTHER HOPS

REPEATER

FINAL CONFIGURATION

CURRENT CONFIGURATION

Easy conversion process

Use one existing loop connection that has a common path as the trunk for the repeater.

IP Router switches with repeaters for common leg runs

1 Assign VLAN jurisdictions to switch/router and repeater locations.2 Create schedule of IPC IP address changes that will conform to VLAN structure and submit to GWorld Applications Administrators.3 Create schedule of loops whose fiber cabling will be re-used for repeater connectivity. (See attached drawings)4 Submit list of backup and normal power requirements and their locations to Ron Schreiber for approval and comment.5 Install repeaters in racks of respective buildings.6 Submit conversion schedule to GWorld Applications Administrators for approval.7 Convert loops:

Document and confirm repeater fiber path for one repeater and stage parts for conversion. Disconnect fiber of loop to be re-used, attach repeater, re-attach loop and check for proper operation. Patch in remaining loops to be connected through repeater and check. Remove all parts of obsoleted loop infrastructure. Submit documentation of current and retired infrastructure to Ron Schreiber.

GWORLD MESHED NETWORKREPEATER INSTALLATION STEP

BJK 12/07/05

DRAFT

SYSTEM/BUSINESS CONTINUANCE SYSTEM/BUSINESS CONTINUANCE DOCUMENTATIONDOCUMENTATION

STRATEGIES AND PITFALLS STRATEGIES AND PITFALLS

SYSTEM/BUSINESS CONTINUANCE DOCUMENTATIONSTRATEGIES AND PITFALLS

When adding, giving back or fixing circuits, documentation can save you time and money.

Accounting Work description Diagnostic aid


For disaster recovery, documentation could make a huge difference in the time it takes to get your system back into a working condition


For justifying decisions or defending decisions,

documentation can really make stating your case a lot easier.




BJK 12/07/05

DRAFT


DISADVANTAGES

•Time consuming to create and maintain


Three types of drawing documentation used by GW

MSWORD Drawings very portable to just

about anyone. Not widely used for drawing. Easy to use but somewhat

methods are somewhat arcane.

Exportable into Visio (some objects translate better than others).

Moderate learning curve.



MSVISIO Requires that you purchase

Visio Not everyone has it (not as

portable) Focus of software is drawing

(more features). Moderate learning curve.



AUTOCAD Drawings portable only to

other Autocad

users or through viewers with varying editing features.

Very expensive Big learning curve. Used by many

Architecture/engineering firms

SUMMARYSUMMARY

SUMMARY

A few years ago we had a system that

could not be moved had all sorts of special

connections was understood by very

few people

SUMMARY

These steps we have taken have made it so that, with a little preparation, we can put critical system devices in a number of places.

SUMMARY

Documentation has given us recognition as a team that can play well with others.




BJK 12/07/05

DRAFT

SUMMARY

We cut down on down time for several kinds of transitions.

FIREWALLDATACARD

UNIPRINTNET SWITCH

UNCOND.

ANALOG


F I B E R


(AMPHENOL)

SUMMARY

We are poised to take advantage of many of the features that will come with the Universal Edition.

NP

ENDEND

FUNNY CLOTHESFUNNY CLOTHES

GWORLD DIR. GWORLD DIR. KEN KEN

PIMENTELPIMENTEL

GWORLD ASST. GWORLD ASST. DIR. DIR.

JAMES WHITEJAMES WHITE

Thank You!Suzanne Werner

[email protected]

Bio: Has been working at The George Washington University for three years as the Senior Applications Administrator for the GWorld Card program. She has a BA in Computer Science from Rutgers University and

has over 8+ years experience working with various Unix systems. She is a New Jersey native with a passion for writing and playing her own music and has traveled across the country playing in several bands.

Steve Nichols202-994-0421

[email protected]: Has been working at The George Washington University for three years as an Applications Administrator for the GWorld Card program. An alumnus of the Virginia Military Institute, he has over 8+ years working in

various IT fields for both the government and private sector. A Virginia native, he enjoys the outdoors and is a die-hard Washington Redskins fan.

Brendan Kelly202-994-1711

[email protected]: Has been working at The George Washington University for seven years in various technical positions for the GWorld Card program. He attended Northeastern University’s Electrical Engineering program and has over 20 years experience working with various device control and computer systems. He is a Connecticut native and

spent 15 years in and around Boston. He enjoys skiing and starting projects.

Documents

BEGINNING AND INTERMEDIATE STEPS ON PREPARING BLACKBOARD SYSTEM CONNECTIVITY FOR AUTOMATED REDUNDANCY/FAIL-OVER CAPABILITY STRATEGY, IMPLEMENTATION, DOCUMENTATION