Your customer wishes to deploy an enterprise application to AWS which will consist of several web servers,
several application servers and a small (50GB) Oracle database information is stored, both in the database and
the file systems of the various servers. The backup system must support database recovery whole server and
whole disk restores, and individual file restores with a recovery time of no more than two hours. They havechosen to use RDS Oracle as the database Which backup architecture will meet these requirements?
A.
Backup RDS using automated daily DB backups Backup the EC2 instances using AMIs and supplement
with file- level backup to S3 using traditional enterprise backup software to provide file level restore.
B.
Backup RDS using a Multi-AZ Deployment Backup the EC2 instances using Amis, and supplement by
copying file system data to S3 to provide file level restore.
C.
Backup RDS using automated daily DB backups Backup the EC2 instances using EBS snapshots and
supplement with file-level backups to Amazon Glacier using traditional enterprise backup software to
provide file level restore.
D.
Backup RDS database to S3 using Oracle RMAN Backup the EC2 instances using Amis, and supplement
with EBS snapshots for individual volume restore.
Explanation:
You need to use enterprise backup software to provide file level restore. See:
https://d0.awsstatic.com/whitepapers/Backup_and_Recovery_Approaches_Using_AWS.pdf Page 18:
If your existing backup software does not natively support the AWS cloud, you can use AWS storage gateway
products. AWS Storage Gateway is a virtual appliance that provides seamless and secure integration between
your data center and the AWS storage infrastructure.
A
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A
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Answer A: => RDS automated backups with file-level backups can be used
B:=> Multi-AZ is more of an Disaster recovery solution
C:=> Glacier not an option with the 2 hours RTO
D:=> Will use RMAN only if Database hosted on EC2 and not when using RDS
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A
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C. You back up EC2 using snapshots not AMI’s. You need to use traditional software to back up file level to glacier.
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My answer assumes that you will make expedited retrievals from glacier. If that is not an option, A is the alternative … except that I would change AMI’s to EBS snapshots.
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