SAP-C02 · Question #788
A global ecommerce company has many data centers worldwide. The company needs scalable cloud storage for legacy file applications. Requirements: - Must support iSCSI access from on-premises servers…
The correct answer is C. Provision an AWS Storage Gateway volume gateway in cache mode. Back up the volumes using. The company needs scalable cloud storage for on-premises legacy file applications requiring iSCSI access, low-latency for frequently accessed data, and AWS Backup for snapshots.
Question
A global ecommerce company has many data centers worldwide. The company needs scalable cloud storage for legacy file applications. Requirements:
- Must support iSCSI access from on-premises servers.
- Must support point-in-time snapshots via AWS Backup.
- Must retain low-latency access to frequently accessed data.
Which solution will meet these requirements?
Options
- AProvision an AWS Storage Gateway tape gateway with S3 and AWS Backup.
- BUse Amazon FSx File Gateway and S3 File Gateway. Use AWS Backup.
- CProvision an AWS Storage Gateway volume gateway in cache mode. Back up the volumes using
- DProvision an AWS Storage Gateway file gateway in cache mode. Use AWS Backup.
How the community answered
(45 responses)- A9% (4)
- B13% (6)
- C76% (34)
- D2% (1)
Why each option
The company needs scalable cloud storage for on-premises legacy file applications requiring iSCSI access, low-latency for frequently accessed data, and AWS Backup for snapshots.
A Tape Gateway is for virtual tape libraries and archival, not for iSCSI access to active file application data with low-latency requirements.
Amazon FSx File Gateway and S3 File Gateway are for file-level access (NFS/SMB) to cloud file systems or S3 objects, not iSCSI block storage required by the legacy applications.
An AWS Storage Gateway volume gateway in cached mode provides on-premises applications with low-latency iSCSI block storage access to frequently accessed data stored locally, while asynchronously uploading all data to Amazon S3. The volumes can then be backed up using AWS Backup for point-in-time snapshots, meeting all requirements.
A File Gateway provides NFS and SMB access to S3, which does not meet the iSCSI access requirement for legacy applications.
Concept tested: AWS Storage Gateway Volume Gateway (cached mode)
Source: https://docs.aws.amazon.com/storagegateway/latest/userguide/StorageGatewayConcepts.html#volume-gateway-cached-volumes
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