oracle e-business suite r12 dba best practices...ebs r12 dba best practices • oracle applications...
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Oracle E-Business Suite R12
DBA Best Practices
James J. Morrow
Senior Oracle Applications DBA
mailto:[email protected]
http://thedbalife.blogspot.com
Session #CON4733
Atherio.com © 2013 All rights reserved
EBS R12 DBA Best Practices
• Oracle Applications DBA
• Independent Consultant
• 18+ years as an E-Business Suite DBA
• 20+ years as a Unix/Linux Administrator
• E-Business Suite versions 9.4 through R12.1.3
• Oracle RDBMS 7.0.16 through 11.2.0.3
James J. Morrow
Atherio.com © 2013 All rights reserved
EBS R12 DBA Best Practices
• Understand business expectations
• Understand business requirements
• Business may want 24x7 but may actually need less
Establish an SLA
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EBS R12 DBA Best Practices
• Typical “Financials” customer
• Office workers Monday-Friday 6:00AM to 7:00PM (local
time)
• Understand the requirements vs. expectations
Establish an SLA
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EBS R12 DBA Best Practices
• By understanding requirements vs. expectations we gain
flexibility
• You still have a 24x7 system
• During critical business hours downtime may be nearly
impossible to obtain
• However, by understanding requirements vs. expectations,
scheduling outages outside of critical business hours can
become easier
Establish an SLA
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EBS R12 DBA Best Practices
• Define/Document key stakeholders, approvers, notification
procedures for unscheduled outages
Establish an SLA
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EBS R12 DBA Best Practices
• Stable systems don't tend to have code updates (migrations,
patches) on an ad-hoc basis
• Changes are documented, rehearsed, validated
• Monthly or Weekly
Establish Regular Maintenance Windows
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EBS R12 DBA Best Practices
• Reduce ambiguity
• Reduce confusion
• Process leads to stability
Documented Procedures
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EBS R12 DBA Best Practices
• COB Monday, 6 days prior – The DBA will produce a list
of patches that are identified as potential promotion
candidates. This list will contain patches applied to lower
level environments that have not yet been migrated. The list
should be sent to various pre-defined approving personnel.
The DBA should also send out a calendar of “DBA Events”
for the next couple of months at this point.
Procedures: Maintenance Window
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EBS R12 DBA Best Practices
• COB Wednesday, 4 days prior – All patches destined for
PROD during the maintenance window should be applied to
the QA (PROD -1) instance.
Procedures: Maintenance Window
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EBS R12 DBA Best Practices
• COB Thursday, 3 days prior – DBA will prepare a “Maintenance
Plan” for the outage (based on a standard template). DBA will also
create a Change Request in the CM portal with the Maintenance Plan
attached. The maintenance plan shall include:• Contact information for key individuals
• Email lists for individuals to be notified of specific changes upon completion
• General objectives for the maintenance window
• List of patches to be applied
• Patch prerequisite research
• List of tasks performed in advance of the outage
• List of tasks to be performed during the outage (with specific commands and
timing estimates, where applicable)
Procedures: Maintenance Window
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EBS R12 DBA Best Practices
• COB Friday, 2 days prior – Management will give final
approval for the outage.
Procedures: Maintenance Window
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EBS R12 DBA Best Practices
• Technically challenging
• Even though Oracle provides tools and documentation, site-
specific procedures are still required
Procedures: Cloning
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EBS R12 DBA Best Practices
• Site-specific steps• Preparation of the target environment
• Information about the nature of the backup that will be used
• Instructions on how the backup should be restored
• Detailed instructions on how the database should be recovered by the DBA
• Detailed instructions on how the Oracle cloning utilities are used
• Detailed instructions on extra post-cloning tasks
Procedures: Cloning
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EBS R12 DBA Best Practices
• Don't use default passwords!
• Change production passwords on a regular basis
• Enforce complex passwords
• Be aware of special characters
• Avoid sharing passwords whenever possible
• Delegation of authority
• Use a secure “Password Safe” when passwords need to be shared
Procedures: Password Change
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EBS R12 DBA Best Practices
• Code and patches should follow a strictly defined migration
path
DEVL → TEST → QA → PROD
• PROD and QA (PROD-1) should be restricted access
instances
Procedures: Migration
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EBS R12 DBA Best Practices
• Define/understand your organization’s patching philosophy
• Security Patches
• May be dictated externally
• PCI (Credit Card) requirements: Vendor supplied security
patches applied within 30 days
Patching Philosophy
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EBS R12 DBA Best Practices
Don't get caught in prerequisite hell
• Stay current on AD, TXK, ATG patches. They're the most
likely prerequisites!
• Minimum requirements for security patches
Patching Philosophy
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EBS R12 DBA Best Practices
• Patchsets.sh script (Note 139684.1 and Note 549180.1)sftp –o Port=2021 <mosusername>@sftp.oracle.com
cd support/outgoing/PATCHSET_COMPARE_TOOL
get patchsets.sh
• Patch Wizard in Oracle Applications Manager (Note
976188.1)
Patching Philosophy
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EBS R12 DBA Best Practices
• Premier Support for E-Business Suite 11.5.10 ended November 30,
2010. Extended ends November 30, 2013. (Note 1495337.1)
• Exceptions for 11i Sustaining:
• YE 2013 1099 Patches, and 3 payroll updates for FYE 2014 (US,
Canada, UK, Australia)
• SEV1 bugfixes, CPUs through December, 2015 NEW
• Minimum Baseline Patches for Extended Support
• 11.5.10 – After December 1, 2010 (Note 883202.1)
• Patch Wizard Update for 11i (Patch 9803629)
Patching Philosophy
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EBS R12 DBA Best Practices
• Release 12.0 Support Milestones
• January, 2007 – R12.0 Released
• February 1, 2012 - Premier Support Ends (R12.0.6)
(845809.1)
• Extended Support Fee waiver until January, 2015
• January, 2015 – Extended Support Ends
Patching Philosophy
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EBS R12 DBA Best Practices
• Release 12.1 Support Milestones
• May, 2009 – R12.1 Released
• July 1, 2011 – You must apply R12.ATG_PF.B.delta.2 (R12.1.2
Technology RUP) (845809.1)
• February 1, 2012 – You must apply R12.ATG_PF.B.delta3 (R12.1.3
Technology RUP) (1066312.1)
• February 1, 2013 – You upgrade to EBS R12.1.3
• December, 2016 – R12.1.3 Premier Suport Ends NEW
• December, 2019 – R12.1.3 Extended Support Ends (1495337.1) NEW
Patching Philosophy
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EBS R12 DBA Best Practices
• Release 12.2 Support Milestones
• September 19, 2013 – R12.2.2 Released to GA
• September, 2018 – Premier Support Ends NEW
• September, 2021 – Extended Support Ends NEW
Patching Philosophy
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EBS R12 DBA Best Practices
• Performance Impact
• Disk Management Impact
• Define maximum retention for all requests
• Schedule daily “blanket purge”
• Schedule more aggressive purges for specific jobs
Concurrent Managers: Purging
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EBS R12 DBA Best Practices
• Concurrent Manager Tuning is traffic management
• Tune based on runtime and frequency
• Jobs are either exiled from a queue or eligible for a queue
• Don't over-complicate your queues!
• Remember some jobs require specialized managers!
Concurrent Managers: Tuning
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EBS R12 DBA Best Practices
• Pin stored procedures (Except on RDBMS 11g!)
• PIND.sql (Note: 301171.1) [Note has been pulled]
• Gather Schema Statistics
• Run periodically
• Optimizer requires current statistics to effectively do it's job
Statistics and Pinning
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EBS R12 DBA Best Practices
• Use in all non-production environments
• Is NOT set by RapidClone
• Defined through Oracle Applications Manager
• Traps outgoing notifications
• Allow multiple users (testers) access to the mailbox
• Allows full-cycle testing of the outbound Workflow
Notification process
Workflow Mailer: Test Address (Outbound)
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EBS R12 DBA Best Practices
• Use in all non-production environments
• Is NOT set by RapidClone
• Defined through Oracle Applications Manager
• Prevents non-production instances stealing messages from
production
• Allows full-cycle testing of inbound Workflow processing
Workflow Mailer: Test Mailboxes (Inbound)
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EBS R12 DBA Best Practices
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EBS R12 DBA Best Practices
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Contact Us
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…………………….
Thank You!
James J. MorrowAtherio/Red River Solutions, Inc.
mailto:[email protected]
http://thedbalife.blogspot.com
@jjmorrow
Oracle E-Business Suite
R12 DBA Best Practices
Session #CON4733