AWS Certified Solutions Architect - Associate
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A recent analysis of a company's IT expenses highlights the need to reduce backup costs. The company's chief information officer wants to simplify the on-premises backup infrastructure and reduce costs by eliminating the use of physical backup tapes. The company must preserve the existing investment in the on-premises backup applications and workflows.
What should a solutions architect recommend?
Other
Community
UAnonymous
A
Set up AWS Storage Gateway to connect with the backup applications using the NFS interface.
B
Set up an Amazon EFS file system that connects with the backup applications using the NFS interface.
C
Set up an Amazon EFS file system that connects with the backup applications using the iSCSI interface.
D
Set up AWS Storage Gateway to connect with the backup applications using the iSCSI-virtual tape library (VTL) interface.
Explanation:
Explanation
Correct Answer: D
Why D is correct:
- AWS Storage Gateway with iSCSI-VTL interface is specifically designed to replace physical tape libraries with virtual tape libraries in the cloud.
- Preserves existing investment - The company can continue using their existing backup applications and workflows that are designed for tape-based backups.
- Eliminates physical tapes - The VTL interface presents virtual tapes to the backup applications, eliminating the need for physical tape infrastructure.
- Cost reduction - Reduces costs associated with physical tape media, storage, maintenance, and transportation.
- Seamless integration - Backup applications see the Storage Gateway VTL as a standard tape library, requiring minimal changes to existing workflows.
Why other options are incorrect:
A. AWS Storage Gateway with NFS interface:
- NFS is for file-based storage, not tape-based backups
- Would require changing backup applications and workflows
- Doesn't directly replace tape infrastructure
B. Amazon EFS with NFS interface:
- EFS is a managed NFS file service for EC2 instances
- Not designed for tape backup replacement
- Would require significant changes to backup workflows
C. Amazon EFS with iSCSI interface:
- EFS doesn't support iSCSI interface
- iSCSI is block storage, not file storage
- Not compatible with tape backup workflows
Key AWS Services:
- AWS Storage Gateway: Hybrid cloud storage service that connects on-premises environments with AWS cloud storage
- Virtual Tape Library (VTL): Presents virtual tapes to backup applications via iSCSI protocol
- Amazon S3: Backend storage for virtual tapes (Glacier for archival)
Benefits of this solution:
- Maintain existing backup software investments
- Reduce physical infrastructure costs
- Leverage AWS cloud storage scalability
- Enable long-term retention with Amazon S3 Glacier
- Improve disaster recovery capabilities
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