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Zorluk: ZorPlanning Cloud Storage Buckets and Storage Classes

An industrial manufacturing company uploads high-resolution optical inspection images to Google Cloud Storage. Analysis of the data lifecycle reveals the following operational requirements:

- Newly created images are accessed continuously by automated quality assurance systems during the first 30 days.
- Between 31 and 90 days, images are queried infrequently (approximately once per month) for batch defect trend reporting.
- After 90 days, images are rarely accessed but must be kept for 3 years to comply with industrial safety audits.

You need to design a Cloud Storage lifecycle policy that optimizes total operational cost while avoiding premature transition fees and excessive retrieval charges. Which storage class transition strategy should you implement?

  1. Create a bucket with the Standard storage class. Add a lifecycle rule to transition objects to Nearline storage after 30 days, and a second rule to transition objects to Coldline storage after 90 days.Cevap
  2. B
    Create a bucket with the Nearline storage class as default. Add a lifecycle rule to transition objects directly to Archive storage after 30 days.
  3. C
    Create a bucket with the Standard storage class. Add a lifecycle rule to transition objects directly to Archive storage after 30 days.
  4. D
    Create a bucket with the Coldline storage class as default. Add a lifecycle rule to transition objects to Archive storage after 90 days.

Cevap

Create a bucket with the Standard storage class. Add a lifecycle rule to transition objects to Nearline storage after 30 days, and a second rule to transition objects to Coldline storage after 90 days.
The correct strategy starts with Standard storage to allow frequent QA reads during the first 30 days without incurring retrieval fees. Transitioning to Nearline after 30 days reduces storage costs while accommodating monthly batch reporting queries. Transitioning to Coldline after 90 days further reduces long-term retention costs for compliance while respecting the 90-day minimum duration policy of Coldline storage.

Adım Adım Çözüm

1
Analyze the access pattern and minimum duration requirements for the initial 30 days.
Images are continuously accessed during the first 30 days, requiring zero retrieval fees.
Standard storage class has no minimum storage duration and zero retrieval costs, making it the most cost-effective tier for frequently accessed active data.
2
Analyze the access pattern and minimum duration requirements for days 31 to 90.
Images are accessed once per month, fitting the Nearline access pattern.
Nearline storage is optimized for data accessed less than once a month and requires a 30-day minimum storage duration, matching the 30-day transition threshold.
3
Analyze the access pattern and minimum duration requirements after 90 days.
Images are rarely accessed over a 3-year compliance period, fitting the Coldline access pattern.
Coldline storage is optimized for data accessed at most once every 90 days and carries a 90-day minimum storage duration, matching the 90-day transition threshold.

Anahtar Kavram

Google Cloud Storage Storage Classes and Object Lifecycle Management
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Planning Cloud Storage Buckets and Storage Classes

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