Podcast
Questions and Answers
Which of the following is NOT a predefined scenario in the Quick Sizer?
Which of the following is NOT a predefined scenario in the Quick Sizer?
For an SAP HANA appliance, storage and CPU sizing must be done separately by the customer.
For an SAP HANA appliance, storage and CPU sizing must be done separately by the customer.
False (B)
What is the basis for the hardware recommendation for an SAP HANA system?
What is the basis for the hardware recommendation for an SAP HANA system?
The result of the memory sizing
For each scenario in the Quick Sizer, the expected data ______ is different.
For each scenario in the Quick Sizer, the expected data ______ is different.
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Match the following SAP solutions with their descriptions:
Match the following SAP solutions with their descriptions:
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What is the primary factor that SAP HANA sizing revolves around?
What is the primary factor that SAP HANA sizing revolves around?
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The compression rate of data in SAP HANA allows for accurate estimation of required memory.
The compression rate of data in SAP HANA allows for accurate estimation of required memory.
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What are the two deployment options for an SAP HANA database system?
What are the two deployment options for an SAP HANA database system?
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For accurate SAP HANA memory sizing, one should use the Quick Sizer for SAP HANA or the SAP HANA sizing reports and SAP _________.
For accurate SAP HANA memory sizing, one should use the Quick Sizer for SAP HANA or the SAP HANA sizing reports and SAP _________.
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Which of the following is NOT mentioned as a possible sizing approach for SAP HANA?
Which of the following is NOT mentioned as a possible sizing approach for SAP HANA?
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Sizing of other components like SAP ABAP application servers should always be included in SAP HANA database sizing.
Sizing of other components like SAP ABAP application servers should always be included in SAP HANA database sizing.
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Match the following SAP HANA sizing methods with their use cases:
Match the following SAP HANA sizing methods with their use cases:
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What happens to data when it is stored in SAP HANA memory?
What happens to data when it is stored in SAP HANA memory?
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What is the formula for calculating sizing, considering a CPU utilization buffer?
What is the formula for calculating sizing, considering a CPU utilization buffer?
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The sizing formula is most accurate when the system has a large number of users.
The sizing formula is most accurate when the system has a large number of users.
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Name two resources that the Quick Sizer tool calculates.
Name two resources that the Quick Sizer tool calculates.
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An active user is one that consumes _______ at a given point in time.
An active user is one that consumes _______ at a given point in time.
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Match the item with the details regarding sizing:
Match the item with the details regarding sizing:
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What is the purpose of the CPU utilization buffer in the sizing formula?
What is the purpose of the CPU utilization buffer in the sizing formula?
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Sizing is a one-time process that doesn't require vendor input.
Sizing is a one-time process that doesn't require vendor input.
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Besides the sizing formula, what other tool can be used to size a SAP HANA database?
Besides the sizing formula, what other tool can be used to size a SAP HANA database?
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Study Notes
SAP HANA Sizing
- SAP HANA sizing focuses primarily on the main memory needed to hold the data.
- The exact memory requirement depends on the scenario and cannot be estimated directly from source database size.
- A Quick Sizer tool or SAP HANA sizing reports are necessary to determine the required memory.
- SAP HANA compresses data in memory, affecting memory calculation.
Sizing Approaches
- Customers new to SAP applications and HANA often use the Quick Sizer.
- Existing SAP customers migrating to HANA use sizing reports to determine the required memory.
- Complex implementations, such as consolidating multiple ERP systems or migrating high-volume legacy systems, require expert sizing.
- Different scenarios (New implementation, Database migration) use different approaches to estimate sizes.
SAP HANA Tailored Data Center Integration (TDI)
- TDI allows greater flexibility in hardware choices compared to using only SAP HANA appliances.
- TDI enables reusing existing hardware, reducing hardware and operational costs.
- TDI offers more flexibility in hardware vendor selection, leveraging existing IT management processes.
- SAP does not offer formal certification for TDI infrastructure. Instead, SAP certifies hardware components.
- Customer must meet the requirements dictated by SAP HANA.
DRAM Sizing
- The first step is memory sizing, using a Quick Sizer tool or SAP Notes.
- Varying use cases dictate different resources for sizing.
- Memory sizing reports from SAP notes should be used, in addition to the Quick Sizer.
- The reports listed are examples and should be consulted when implementing SAP HANA.
- Both quick sizer input and the information found in reports are necessary to ensure accurate sizing.
Disk Sizing
- The data volume size is crucial for sizing.
- The log volume space is based on data changes between savepoints, crucial for recovery.
- The data volume requires approximately 20% extra space for delta merge operations and growth.
Backup Considerations
- Backup cycles consider full backups (weekends) and incremental backups (workdays).
- The necessary space depends on the backup strategy (all full backups, weekend full backups, workdays incremental backups)
Network Requirements
- Database sizing takes into account the size of the network and network components.
- SAP HANA appliances often include the internal and storage network, while client and admin zones are typically customer responsibility.
- The network's capacity for internal and storage zones must meet minimum requirements.
CPU Sizing
- CPU sizing is calculated based on throughput needed for query complexity.
- CPU needs are calculated based on the number of concurrent users and the complexity of queries.
- 300 SAPS per active user with a 65% buffer are the recommended minimum CPU capacity.
Sizing Method Quick Sizer
- The Quick Sizer tool is utilized for initial hardware sizing.
- Multiple predefined scenarios (e.g., SAP Business Suite, SAP S/4HANA, SAP BW/4HANA) can be used for initial estimations.
- The tool calculates CPU, disk, and memory requirements.
- The input needed will be determined by the customers current setup.
SAP HANA Appliance Sizing
- Hardware installation sizing should be done utilizing the Quick Sizer.
- Information included in SAP notes should be used in conjunction with the Quick Sizer calculations.
- The factors in the sizing may vary depending on the application being migrated to HANA.
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Description
This quiz covers the key concepts of SAP HANA sizing, including memory requirements, Quick Sizer tools, and sizing reports for various implementation scenarios. You will learn about the different approaches to sizing for both new and existing SAP customers, as well as the flexibility offered by Tailored Data Center Integration (TDI).
