1.
BASLE BERN BRUGG DÜSSELDORF FRANKFURT A.M. FREIBURG I.BR. GENEVA
HAMBURG COPENHAGEN LAUSANNE MUNICH STUTTGART VIENNA ZURICH
Backup Methods from Practice
Optimized and Intelligent
Roland Stirnimann
Robert Kruzynski

2.
Backup Methods from Practice2 2016-09-09
DATA LOSS – Does it happen?

3.
Agenda
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1. Introduction
2. Present Backup Situation
3. Trivadis Backup Approach
Initial Idea
Trivadis Intelligent Backup
Added Value

4.
Backup Methods from Practice4 2016-09-09
Introduction

5.
Reasons that argue for a Backup
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Top causes of data loss
– Human errors
– Hardware or system malfunctions
– Software corruptions
– Computer viruses and malware
– Natural disasters
Murphy’s Law
– Concatenation of circumstances
– Backup as a very last stopgap

6.
High Availability and Backup
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Do we need a backup? We have Data Guard for Oracle and
AlwaysOn for Microsoft SQL Server!
High Availability does not replace the backup!
Restore can help for:
– Disaster restore (Murphy’s Law)
– Logical Corruption (unexpected feature)
– Restore for error analysis (system malfunction)
– Reverse mistakes that happened between the backrest and the keyboard

7.
Backup Methods from Practice7 2016-09-09
Present Backup Situation

8.
Backup Load Peaks
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Source: http://emgn.com/entertainment/23-ridiculously-overloaded-vehicles-from-all-around-the-world/

9.
Backup Management Pains
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Fixed scheduling plans
– Redundancy of backed up data
– No adaption of the plan because of a changed situation
– Overlapping of backup jobs
– Different SLA requirements in terms of backup
Decentral backup configuration
– Maintenance windows per server/database
– Difficult handling of different database categories
Manual restore tests
Backup monitoring

10.
Reporting
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Current, past and future situation
– Only visible in the log files
– What is going on right now?
– Planned jobs in the near future
Backup output (volume) and input (read i/o)
– Source of performance peaks
Multi-client and central reporting
Summary reports for the management/clients

11.
Backup Methods from Practice11 2016-09-09
Trivadis Backup Approach

12.
Initial Position
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Big customers have often serious backup issues
– Several hundreds of databases
– Lost tracking of backups
– Capacity problems during backup
One customer asked Trivadis to solve theses issues about 4 years ago
Our smart approach is in place for years
Since release 16.05 part of TVD-Backup Enterprise Edition
Customer statement: “We do not have to care about database backups anymore!”

13.
Trivadis Intelligent Backup (TIB)
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Uniqueness in the market because of the intelligent scheduling
TIB is part of TVD-BackupTM Enterprise Edition
Interacts with the existing backup component (rman_exec)
Lean and stable solution, based on Perl and PL/SQL (decision algorithm)
TIB knows the situation
– of all running database instances
– of all backups
TIB decides policy-based if a backup is necessary

14.
Trivadis Intelligent Backup (TIB)
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15.
Resource Savings from a real Customer Case
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I/O reduction thanks to
TIB
– TIB operating since
August 2012
DB188
– TVD-CapMan chart
shows RMAN I/O
(blue) and DB size
(brown)
– I/O reduction by
over 80%
– 15 TB less I/O per
month!

16.
TIB Features (1)
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Intelligent backup scheduling from central repository
– Policy-based decision algorithm
– Demand-oriented scheduling plan, no fix intervals
– Even load distribution thanks to foresighted backup planning
– Situation, rating and decision data is kept (forever)
Automatic detection and backup of new databases
Central backup management (e.g. maintenance windows)
Corrective actions in case of failures
Emergency mode for the backup agent in case of repository disconnect

17.
TIB Features (2)
Backup Methods from Practice17 2016-09-09
One policy/configuration for many databases
– SLA parameters (retention, RTO, transaction volume, frequency periods)
– Backup call definitions
– Backup windows
Backup reporting
– On the command line
– Starting with 16.11 in TVD-ReportService (PDF, Word, etc.)

18.
Decision Algorithm Features
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Interval ranges and time windows
Recovery time target
Archive destination free time target
Redo volume percentage
Current database role
Current backup load (per database, per server, per pool)
Can use RAC instance with lowest load (CPU or I/O)
Error handling
Forecasts next backup duration from previous runs and current redo volume
and much more…

19.
Trivadis Intelligent Backup Control Utility – tibctl
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oracle@lsrv01:~/ [rdbms12102ee] tibctl.ksh --help
Trivadis Intelligent Backup Control Utility
Usage:
tibctl <function> <options>
Functions:
list|overview|running|unknown|last|failed
db-config|agent|situation|rating
plan|plan-list
db-report|monthly-report|daily-report
print-week|print-12h
modify|enable|disable
register|unregister
windows|configs|calls|rman-configs
create-decision-job|start-decision-job|drop-decision-job

20.
tibctl – Database Configuration / Maitenance Mode
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21.
tibctl – Listing Backups
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22.
tibctl – Configuration Profiles
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23.
tibctl – Monthly Report
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24.
tibctl – DB Specific Reports
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25.
tibctl – Backup Job Distribution Report
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26.
Added Value
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Cost savings by reducing the volume
Increased efficiency by preserving system/human resources
Reducing risks thanks to a reliable backup scheduling
Transparency with our comprehensive reports
Standardization and automation leads to quality improvements

27.
TIBSimu – Get your potential Savings in a nutshell
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TIBSimu calculates your potential savings in minutes
– Simulates backup runs based on existing RMAN catalog metadata
– Accepts several input parameters as backup policy
Customer # Databases Output Reduction
(Backup Volume)
Input Reduction (I/O)
Bank 1 64 -55% (160 TB) -60-70% (250-350 TB)
Bank 2 32 -76% (27 TB)
Backup compression
-73% (70 TB)
Retailer 37 -30% (21 TB) -27% (25 TB)

28.
Questions & Answers
Roland Stirnimann
Business Development Manager
roland.stirnimann@trivadis.com
Phone +41 58 459 52 47
2016-09-09 Backup Methods from Practice29
Robert Kruzynski
Principal Consultant / Partner
robert.kruzynski@trivadis.com
Phone +49 89 99 27 59 30