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Zorluk: OrtaBlob, File, and Disk Storage Solutions

A company is designing a storage solution for a legal compliance application that stores historical case documents. The documents are accessed frequently during the first 30 days after creation. After 30 days, the documents are rarely accessed, but the company is legally required to retain them for 7 years. When a document is requested, it must be available for immediate download with sub-second retrieval times. The storage solution must survive a regional disaster. Which storage configuration should you recommend?

  1. A Geo-Redundant Storage (GRS) account with a lifecycle management policy that transitions documents to the Cool tier 30 days after creationCevap
  2. B
    A Locally Redundant Storage (LRS) account with a lifecycle management policy that transitions documents to the Cool tier 30 days after creation
  3. C
    A Geo-Redundant Storage (GRS) account with a lifecycle management policy that transitions documents to the Archive tier 30 days after creation
  4. D
    A Locally Redundant Storage (LRS) account with a lifecycle management policy that transitions documents to the Archive tier 30 days after creation

Cevap

A Geo-Redundant Storage (GRS) account with a lifecycle management policy that transitions documents to the Cool tier 30 days after creation
A Geo-Redundant Storage (GRS) account with a lifecycle management policy transitioning blobs to the Cool tier after 30 days is the correct solution. GRS satisfies the requirement to survive a regional disaster by replicating data to a secondary region. The Cool tier minimizes storage costs for data that is rarely accessed after 30 days while keeping the data online for immediate, sub-second retrieval.

Adım Adım Çözüm

1
Determine the required redundancy based on disaster recovery needs.
Since the solution must survive a regional disaster, Locally Redundant Storage (LRS) is insufficient. Geo-Redundant Storage (GRS) is required.
GRS replicates data synchronously three times within the primary region, and then asynchronously replicates it to a secondary paired region hundreds of miles away, securing availability even in the event of a regional outage.
2
Evaluate the retrieval latency requirement for historical documents.
The documents must be retrieved in less than a second (sub-second retrieval).
This rules out the Archive tier, which is an offline tier requiring a rehydration process that takes hours to complete.
3
Identify the most cost-effective online storage tier for data that is infrequently accessed after 30 days.
The Cool tier is the appropriate choice as it offers lower storage costs than the Hot tier while keeping the data online with sub-second retrieval latency.
Lifecycle management policies can automate the transition of blobs from Hot to Cool after 30 days to optimize costs.

Anahtar Kavram

Selecting the appropriate storage redundancy and access tiers using Azure Blob Storage lifecycle management to balance cost, performance, and regional resilience.
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Konular

Blob, File, and Disk Storage Solutions

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