Hardware
Quick answer
In the cloud, sizing maps to certified instance types.
Key takeaways
- SAP sizing uses the SAP Quick Sizer, which converts business inputs (number of users, transaction volumes, data size) into hardware…
- HANA is memory-resident and must run on certified hardware or certified cloud instances, with strict CPU-to-memory ratios.
- CPU (SAPS): for the application and database tiers.
- Watch out: Under-sizing HANA memory, the dataset must fit.
How SAP sizing works
SAP sizing uses the SAP Quick Sizer, which converts business inputs (number of users, transaction volumes, data size) into hardware requirements expressed in SAPS (SAP Application Performance Standard) for CPU, plus memory and disk. This gives a vendor-neutral basis for procuring or provisioning hardware.
The dimensions to size
- CPU (SAPS): for the application and database tiers.
- Memory: critical for HANA, which holds data in RAM.
- Disk/storage: for the database, logs, and backups.
- Network: low latency between app and database tiers.
HANA’s special requirements
HANA is memory-resident and must run on certified hardware or certified cloud instances, with strict CPU-to-memory ratios. Memory sizing is especially important: the whole (or hot) dataset must fit in RAM. This is a major difference from traditional disk-based databases.
Cloud sizing
In the cloud, sizing maps to certified instance types. The same SAPS/memory logic applies, but you choose from certified VM shapes rather than physical servers.
Common pitfalls
- Under-sizing HANA memory, the dataset must fit.
- Uncertified hardware/instances for HANA.
- Ignoring network latency between tiers.
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Check your understanding
Which statement is true of Hardware?
- A. CDS views are the modern SAP data models; this reference explains finding and understanding the many…
- B. This gives a vendor-neutral basis for procuring or provisioning hardware.
- C. Transport administration is the operational side of moving changes through the landscape: importing transport…
Show answer
B. This gives a vendor-neutral basis for procuring or provisioning hardware.
Covered in the “How SAP sizing works” section of this lesson.
Which of these also applies to Hardware?
- A. Following steps without understanding the concept.
- B. Skipping result/error checks (RETURN, HTTP status, IDoc status).
- C. HANA is memory-resident and must run on certified hardware or certified cloud instances, with strict…
Show answer
C. HANA is memory-resident and must run on certified hardware or certified cloud instances, with strict…
Covered in the “HANA’s special requirements” section of this lesson.
Which part of the Learn SAP curriculum covers Hardware?
- A. SAP career guide
- B. SAP installation
- C. SAP how-to guides
Show answer
B. SAP installation
This lesson sits in the SAP installation section of the Learn SAP course.