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L Rental (Zero Downtime Verification Case studies)

L Rental company provides various total rental business of household goods, automobiles, office equipment, and other equipment, etc. L Rental has KRW2.732 trillion in sales and has 220 branches and sales offices with subsidiaries in Thailand and Vietnam.

The Challenge

* Zero-downtime Verification 

- Minimize L Rental’s rental and leasing service interaction to transfer multiple Oracle DB such as rental and lease DBs from Cheonan data center to Yogin data center

- Request to complete data verification of all transferred DBs within 30 minutes before service conversion

The Solution

* Zero-downtime Verification using SILCROAD Package

- Consistency verification performed independently of replication.

- Starting with the first full inspection, each subsequent inspection is verified only on the update data block based on that point in time.

- Continue to reduce the time gap in subsequent verification section until the verification time of the nth order becomes zero.

The Result

* Complete the Zero-downtime Verification

- Target DB: A total of 3 DBs: Rental and lease servers’ KEP (Oracle 11g/RAC/ASM/Exadata), KPP (Oracle 11g), and AEP (Oracle 11g) 

- Data Size: Total 6TB

- Data consistency verified for a total of 6TB before service conversion within 30 minutes (gradual, incremental consistency verification technique)

L Rental (Zero Downtime Verification Case studies)
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2021.10.14 14:46
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