High Availability Options for JD Edwards EnterpriseOne

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High Availability Options for JD Edwards
EnterpriseOne
Shawn Scanlon, GSI
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Disclaimer

• Due to the technical nature of this topic, time
  constraints, and various experience levels in the
  audience, the concepts and terminology presented
  here will be discussed at a higher level
• The information presented here is based on GSIs
  experiences.
• These slides are not intended to present ALL the
  high availability options, just some of the most
  common.
• The only way to really decide on the right
  option(s) for your company is to conduct an
  internal Proof of Concept (POC) and document
  failover behavior and times.

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Agenda

• What is High Availability for E1?
• The E1 Logical Layers
• What is E1 Virtualization?
• What is a Content Switch?
• What is Active-Passive?
• Active-Passive Advantages / Challenges
• What is Active-Active?
• Active-Active Advantages / Challenges
• High Avail Options for E1 Logical Layers
• LIVE High Availability Architectures
• What is the Right Option for Me?
• Questions

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What is High Availability for E1?

• High Availability for JD Edwards EnterpriseOne
  is usually a single site implementation that has
  multiple redundant servers configured at each
  layer in either an ACTIVE-PASSIVE or
  ACTIVE-ACTIVE mode to minimize planned and
  unplanned downtime
• High Availability with multiple sites is
  usually defined of as Business Continuitywhich
  is whole presentation in itself. ?

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The E1 Logical Layers
E1 Database Layer (Single Node, Cluster, RAC,
Unicode / Non-Unicode)
E1 Application / Batch Layer (Kernels,
Multi-threading, BSFN UBE Processing)
E1 Presentation Layer (JAS, Portal, Websphere)
E1 HTTP Layer (Apache)
E1 Client Layer (Client PC)
Network Layer (Routers, Content Switches, VPN,
Bandwidth, Accelerators)
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What is E1 Virtualization?
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What is a Content Switch?
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What is Active-Passive?
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Active-Passive Advantages

• Can provide automatic failover in minutes
• Can allow enough time to review the cause of the
  failure and state of in flight transactions
• Depends on your internal Service Level Agreement
  (SLA)
• Sometimes less expensive than Active-Active with
  regards to hardware
• Depends on if content switches are already in
  place

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Active-Passive Challenges

• Manual procedures need to be in place to make
  sure end users VERIFY state of in flight
  transactions
• Failure behavior is not the same for all E1 Apps
• Depending on configuration, can require a SLA
  with multiple hours of downtime
• How long do you want to spend analyzing the
  failure and status of the in flight
  transactions?
• In some cases, dependent on tech staff being
  available to make manual switch
• INI files
• Does not LOAD BALANCE end users
• Does not SCALE
• 100 of end users will be DOWN until users are
  re-routed to an ONLINE server

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What is Active-Active?
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Active-Active Advantages

• Automatic re-route to ONLINE server(s) in a
  matter of seconds
• Allows LOAD BALANCING of end users
• Very SCALABLE
• If configured with LOAD BALANCE option, only 50
  of end users will be DOWN during failure
• Minimal or No Maintenance Window required
• If architected properly, design will allow for
  maintenance to occur on half the system while the
  other half supports the end users

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Active-Active Challenges

• Manual procedures need to be in place to make
  sure end users VERIFY state of in flight
  transactions
• Failure behavior is not the same for all E1 Apps
• If content switches are not in house, will be
  more expensive to implement than Active-Passive
• Need Network Engineer with Content Switch
  experience
• Need to implement scripts for fail-over / load
  balancing
• In regards to E1, the number of users might be
  balanced across servers, but that does not mean
  the servers are load balanced
• Some E1 Apps are heavier than others and
  require more processing power / memory (e.g.,
  Inquiry vs. Order Entry)
• Need to test different algorithms to find the
  right one for your situationround robin, least
  connections, weighting, etc.

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Todays Focus
E1 Database Layer
E1 Application / Batch Layer
E1 Presentation Layer
E1 HTTP Layer
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High Availability Options for
E1 HTTP Layer
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E1 HTTP Layer Options

• Active-Passive
• Multiple HTTP servers with manual redirection
• Instruct users to enter a different URL
• Create multiple icons on desktop to point to
  different URLs
• Active-Active
• Multiple HTTP servers connected to Content Switch
• Develop scripts to automatically route users to
  an online server

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High Availability Options for
E1 Presentation Layer
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E1 Presentation Layer Options

• Active-Passive
• Multiple JVMs on different ports/servers
• Manually change URL to an online port
• Create multiple icons on desktop to point to the
  different ports
• Double-Take Software (Partners Data Systems)
• E1 Virtualization (manual move)
• Active-Active
• WebSphere Clustering with Network Deployment Mgr
• Content Switch with E1 Virtualization

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High Availability Options for
E1 Application / Batch Layer
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E1 App / Batch Layer Options

• Active-Passive
• Multiple servers ONLINE
• Manually re-direct via JDE.INI file
• Clustering (Intel)
• Replication (e.g., Lakeview Technologys MIMIX,
  Vision Solutions iTera, etc.)
• Double-Take Software (Intel)
• E1 Virtualization (manual move)
• Active-Active
• Content Switch with E1 Virtualization

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High Availability Options for
E1 Database Layer
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E1 Database Layer Options

• Active-Passive
• Clustering (Intel)
• Double-Take Software (Intel)
• Replication (e.g., Lakeview Technologys MIMIX,
  Vision Solutions iTera, etc.)
• Active-Active
• Oracle RAC
• Note Oracles Transparent Application Failover
  (TAF) is NOT available for E1 at this time.

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Simple - Classic iSeries
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Load Balanced
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Load Balanced Full Redundancy
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What is the Right Option for Me?

• What is your stated SLA? Hours or minutes?
• How much money does your company lose for every
  hour the system is down?
• Will the end user community accept multiple hours
  of unplanned downtime? Is there a high political
  cost tied to downtime / user perception?
• Do you have the skills in house?
• Do you have the budget to procure additional
  hardware / software?
• Do you have the time to conduct a POC, implement
  and THOROUGHLY test?

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Summary

• What is High Availability for E1?
• Think in Layers
• E1 Virtualization
• Content Switch
• Active-Passive, Active-Active
• High Avail Options for E1 Layers
• LIVE High Availability Architectures

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QUESTIONS?
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Contact Information

• Shawn F. Scanlon
• EVP - Sales
• Global Systems Integration (GSI)
• Expert JD Edwards CNC Services
• 586-530-2800  Mobile
• shawn.scanlon_at_gsi-solutions.com
• www.gsi-solutions.com