Best Practice 18.4 – Evaluate the cost impact of storage options based on the required characteristics
Select from object storage, file storage, and block storage services to host, archive, and secure your SAP system. Design your storage to reduce cost and increase agility.
Suggestion 18.4.1 – Evaluate the most cost-effective way to design for the I/O and throughput requirements of your workload
For most SAP requirements, solid state drives (SSDs) are recommended for your EBS
volumes. To ensure a flexible, cost-effective selection, we recommend starting with the
General Purpose Amazon EBS type gp3
, if supported by the instance family. Over time,
review the usage using CloudWatch metrics and application/database monitoring. If higher
durability or I/O rates greater than 16,000 per volume are required, consider the
Provisioned IOPS Amazon EBS type.
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AWS Documentation: Amazon EBS volume types
To balance cost and performance considerations, the storage configuration used for
SAP HANA data and log volumes should meet the SAP storage KPI. The storage layouts
outlined in the following document have been tested for the SAP TDI guidelines: SAP HANA Tailored Data Center Integration
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AWS Documentation: Storage Configuration for SAP HANA
Suggestion 18.4.2 – Plan for dynamic changes to storage size and configuration
Optimize storage costs by right sizing storage according to data usage or IOPS requirements.
Extend volume size dynamically as required. Evaluate the option of changing volume types during activities that require increased performance such as application upgrades.
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AWS Documentation: Requesting Volume Modifications
Ensure all orphaned or unused volumes are reviewed regularly to ensure cost control.
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AWS Documentation: List Amazon EBS volume or snapshot information
Suggestion 18.4.3 – Evaluate the cost benefits for object storage
The core data for an SAP system is contained within the database and resides on
Amazon EBS. Amazon S3 can provide low-cost object storage for auxiliary data, such as
backups or archives and large objects such as images or documents. Cost can be further
optimized by selecting the appropriate storage
type
Suggestion 18.4.4 – Evaluate the cost benefits for shared file systems
Amazon Elastic File System (Amazon EFS) provides a serverless, set-and-forget, elastic file system that lets you share file data without provisioning or managing storage. Cost can be further optimized by selecting the appropriate storage class based on your performance and availability requirement.
Amazon FSx provides a fully managed highly available and durable file storage solution built on Windows Server. Data deduplication allows you to optimize costs even further by removing redundant data.
Common SAP use cases for Amazon EFS or Amazon FSx include sapmnt
,
transports, interface files, storing backups, and software. Use of Amazon EFS or Amazon
FSx can provide cost benefits over deploying your own highly available NFS solution.
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AWS Documentation: Amazon EFS
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AWS Documentation: Amazon FSx