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How long does the migration process take?

Post by
Altibase
Date
2021-03-10

The migration process takes approximately one day per TB of data. If your system can handle concurrent processing, approximately 4TB of data can be migrated per day. If you have a significant amount of data (petabytes), parallelization can be utilized to expedite the migration.

Migration Process

Phase

Activities

Duration

System Analysis

  • Analysis of source DBMS

  • conducting interviews with DBAs

  • Preparing analysis reports

1 day per DBMS

Impact Analysis

  • Analysis of change impact of application

  • Preparing report for the degree of impact

1 day per DBMS

Planning

  • Scheduling
    Preparing resources plan

1.5 day

Migration

Data Mapping

  • Defining data mapping rules

+ α

(depends on schema complexity level)

Executing

  • Via Migration Center

1 day per terabyte

Optimization

  • Performance tuning and testing

1 ~ 3 days

Total

5 days + α

(α: day(s) affected by application change impact)

 

Examples of Migration Results

 

Company A

Company B

Source DBMS

Oracle 9i

Informix 11.50

Number of Tables

2,000

800

Number of Indices

7,000

2,000

Data Size

350 gigabytes

2,048 gigabytes

Total Duration

4 days

(10 hours for data migration)

5 days

(48 hours for data migration)


List

Mission - Critical Succeed

Altibase 7.3