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Zorluk: OrtaBlob, File, and Disk Storage Solutions

An organization is designing the storage architecture for a line-of-business application migrating to Azure. The application has the following design requirements:
- The database backend requires disk storage capable of delivering sub-millisecond read/write latency for transaction logs.
- A shared configuration file repository must be accessible concurrently by multiple application servers using the SMB protocol and must remain operational during a zone-level outage.
- Access to the configuration files must be secured and easily revokable if credentials are compromised.

Which two storage configurations should you recommend to meet these requirements?

  1. Configure Premium SSD v2 managed disks for the database transaction logs.Cevap
  2. Configure Azure Files Premium tier with Zone-Redundant Storage (ZRS) for the shared configuration files.Cevap
  3. C
    Configure Standard HDD managed disks for the database transaction logs.
  4. D
    Configure Azure Files Premium tier with Locally Redundant Storage (LRS) to host the shared configuration files.
  5. E
    Use an ad-hoc Shared Access Signature (SAS) token with a lifetime of three years to provide access to the configuration files.

Cevap

Configure Premium SSD v2 managed disks for the database transaction logs, and configure Azure Files Premium tier with Zone-Redundant Storage (ZRS) for the shared configuration files.
Premium SSD v2 managed disks are the correct choice for transaction logs because they offer low sub-millisecond latencies and high performance. Azure Files Premium tier with Zone-Redundant Storage (ZRS) satisfies the SMB concurrent access and zone-outage resilience requirements by replicating data across three availability zones within the region.

Adım Adım Çözüm

1
Analyze the database performance requirement.
The database transaction logs require sub-millisecond latency. This rules out Standard HDD and Standard SSD managed disks.
Only Premium SSD v2 or Ultra Disk managed disks can guarantee the sub-millisecond latencies needed for high-performance write operations like transactional logging.
2
Evaluate the file repository accessibility and redundancy requirements.
The configuration files must be accessible via SMB and survive a zone outage. This points to Azure Files Premium with Zone-Redundant Storage (ZRS).
Azure Files Premium provides SMB access with low latency, and ZRS ensures that the file share remains available even if one datacenter zone fails within the region. Locally Redundant Storage (LRS) is not zone-resilient.
3
Evaluate the security and revocation requirement.
Ad-hoc SAS tokens with long lifetimes should be avoided because they cannot be easily revoked without rotating storage account keys.
Using identity-based authentication or SAS tokens associated with stored access policies allows for immediate revocation and meets security best practices.

Anahtar Kavram

Selecting appropriate disk performance tiers and storage redundancy configurations to meet low-latency and high-availability requirements in Azure.
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Blob, File, and Disk Storage Solutions

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