How long does the migration process take?

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 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)

 

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