SAP on AWS

Cost Management & Optimization

78 flashcards · answers and spaced-repetition review in the KnowCard app

An engineer proposes a tagging-and-rightsizing project that will take two sprints and is forecast to save a few hundred dollars a month. By what test do you decide whether to greenlight it?
You enable AWS vCPU Optimization on an 8-vCPU instance so SAP only licenses 6 vCPUs. What happens to your EC2 bill?
A team says they 'do FinOps' because they run Cost Explorer and Compute Optimizer. What does the FinOps framework say they're actually missing?
On-premise SAP IT spend had a natural ceiling. Why does moving to AWS — even with up-to-50% savings potential — tend to make costs snowball instead?
You want an AWS Budget that alerts only on SAP spend, not the whole account. Which template do you pick and what scope do you set — and why won't a standard template do?
How does Cost Explorer's Cost Anomaly Detection decide what to alert on, and how is the trigger different from an AWS Budgets alert?
A team kicking off FinOps wants the fastest dollar win, so they jump straight to right-sizing SAP and buying Compute Savings Plans (the Optimization pillar). Why will that effort largely miss its target until they do something else first?
Both Compute Optimizer and Cost Explorer give rightsizing recommendations, and Compute Optimizer actually powers Cost Explorer's. So when does the lens they apply lead to different advice?
You want to chart SAP spend trends in Cost Explorer to justify a right-sizing decision. What history window can it actually show you, and where does its forecast come from?
You activate an Application cost allocation tag for SAP today. Why can the breakdown still look wrong for your first report — and what does that force you to do?
You're tracking SAP HANA BYOL with AWS License Manager, but HANA runs on the SLES-for-SAP AMI from AWS Marketplace. Directly associating your self-managed license with that AMI fails. What's the next step?
For S3 cost work you have Storage Lens and Storage Class Analysis. One tells you WHERE costs hide; the other tells you WHICH data to move. Which is which, and what's the catch on each?
You compare your on-premise TCO against an AWS bill and AWS looks more expensive. What hidden on-premise costs are you probably leaving out?
Everyone talks about scaling up under load. Which direction of scaling does the book call 'underrated,' and what habit makes it possible?
A cloud provider advertises a monitoring tool as 'free.' Why can enabling it still raise your bill?
Your sustainability team needs emissions data for the SAP workloads running on AWS. Where does AWS surface it, and under whose responsibility does that fall?
You need extra SAP capacity only during the month-end close. Which EC2 purchase option bills the way you'd want, and how exactly does it charge?
A colleague worries that buying an EC2 Reserved Instance for SAP will 'lock hardware away' and hurt flexibility. What misconception is that?
How does an EC2 Savings Plan differ from a Reserved Instance in what you commit to, and why do most SAP shops pick the 3-year term?
Spot instances offer the deepest EC2 discount. Why does the book rule them out for SAP?
An enterprise with strict in-country data residency picks a single-region HA/DR pattern. Which two cost-and-resilience advantages does staying in one region buy them?
You want to cut the cost of your SAP HA/DR standby without blowing your RTO. What two tactics does the book offer, and what's the catch on the first?
You chose a single region to avoid cross-region egress fees. Which data-transfer cost still shows up in a multi-AZ SAP HA setup, and where?
Moving from a single-region to a multi-region SAP DR design for aggressive RTO/RPO adds a whole cost stack. What are the new charges you must budget for?
"Cloud financial management" gets thrown around loosely. Whose responsibility is it, what activities does it actually cover, and what are its pillars?
A multicloud strategy is supposed to save money, but it adds a mandatory fixed cost for SAP on AWS specifically. What is it?
When SAP spans multiple clouds, ad hoc cost tracking breaks down. What three principles does the multicloud cost framework organize the work around?
Under the multicloud cost framework, what concrete activities make up "cloud spend management"?
What does a "cost-aware architecture" mean in practice, and why does framing SAP cost per-system beat a single "cost to run SAP" number?
Why should cost optimization be scheduled like DR testing rather than treated as a one-off cleanup?
Your organization has no direct relationship with an OS vendor but needs SLES-for-SAP and RHEL licenses. What does AWS Marketplace let you procure besides the software licenses themselves?
Most shops can't say what running SAP truly costs because infrastructure is shared across all IT. How does the cost pillar fix that, and why does it warn against chasing the biggest raw savings number?
You have five SAP application servers each running at about 40% utilization. What does the sustainability pillar's 'maximize utilization' principle tell you to do, and what constraint bounds it?
You need to cleanly separate SAP infrastructure spend — including data egress — between two lines of business. What's the only true way to do that on AWS, and what does it cost to set up?
Your SAP licensing is vCPU-based and the instance size is fixed by that license. How can you still squeeze more SAPS out of the box without a licensing hit?
A stakeholder asks why a cloud provider can run infrastructure cheaper than your own data center. What two categories of scale advantage let them pass savings on to you?
AWS Compute Optimizer recommends 'optimal' configurations from ML on historical metrics. Which resources does it cover, and why must you not apply its advice blindly to SAP?
You expected to buy an EBS reservation like you do for EC2, and to save money by staying on gp2. What does the book correct on both counts?
Two factors determine your AWS KMS bill. What are they?
Beyond pay-as-you-go pricing, does AWS put any actual money toward the cost of an SAP migration — and how do you get it?
What does the Forecasting pillar of cloud financial management require beyond just projecting last month's bill forward?
What drives the cost of Amazon FSx for NetApp ONTAP, and which built-in features help you keep that cost down?
Once you have cost visibility, what four levers does the Optimization pillar of cloud financial management actually pull?
Moving SAP to AWS changes more than the invoice format. How does the shift to an operating-expenses model change team behavior around cost?
In many on-premise shops only the infrastructure team sees the cost of what they build. What does 'normalizing cloud cost awareness' change, and what does it unlock?
Per-core software licensing, single-tenant hardware, and guaranteeing an instance exists for a DR event are three different needs. Which EC2 option maps to each?
On-premise, storage full of old exports sits untouched for years. What does the Well-Architected cost pillar say is fundamentally different in the cloud, and what governance does it demand from day one?
You map every on-premise infrastructure line item to a cloud service and compute TCO. Why does the book still call that calculation incomplete?
Two EC2 configurations are on the table and one is cheaper per hour. Why is raw price the wrong number to compare for an SAP workload?
An SAP lead wants to size the new AWS landscape for projected growth over the next five years, the way they always did on-premise. What does the book tell them to do instead?
A team budgets an AWS service using only its advertised hourly rate and is surprised by the bill. Which cost dimensions does the cloud model add beyond the service price?
The book frames a 'cost-aware architecture' around four building blocks. What are they, and what single idea do they serve?
When comparing on-premise SAP cost against AWS, why does counting servers mislead you, and what should you compare instead?
You have an always-on SAP production system and a sandbox used once a month. Which pricing model fits each, and what number decides the boundary?
Creating a VPC and its subnets for an SAP landing zone costs nothing. So where does the VPC bill actually come from?
Before deploying a large SAP landscape, you want a public-price estimate without entering hundreds of instances by hand. Which tool helps, and what feature saves the typing?
You're bringing your own Microsoft, Oracle, and IBM licenses (with per-core and dedicated-host restrictions) to AWS. Which service enforces those terms, and what risk does it reduce?
Does grouping your many AWS accounts under AWS Organizations add a fee, and what billing advantage does it give the FinOps team?
Two AWS accounts exchange data over a VPC peering connection. Under what condition is that transfer free, and how do you verify the accounts really mean the same physical zone?
You want to lower TCO on SAP application-server compute without losing performance. What processor choice does the book recommend, and how do teams split it between environments?
You want the lowest possible RTO from an EBS snapshot-based recovery for SAP HANA. What two cost traps does chasing that goal open up?
You're sizing a non-production SAP HANA sandbox and want cheaper compute than the production-certified instance families. What extra option exists, and what's the string attached?
For SAP HANA EBS storage, when do you pick gp3 over io2 / io2 Block Express, and why isn't io2 just the default for everything?
Microsoft licensing pushes your SAP-on-SQL-Server workload onto an EC2 dedicated host, which is expensive. How do you claw back cost without leaving the dedicated host?
Business tells you every SAP system needs "zero downtime." How does the cost-versus-reliability trade-off tell you to right-size HA/DR across your landscape instead?
When you optimize an SAP system for performance, three habits quietly inflate the bill. What are they, and what's the cheaper move for each?
For a large SAP footprint that doesn't need HA on every system, why can standardizing on SLES for SAP everywhere be the wrong cost call — and what do you give up by dropping to SLES standard?
You want a single monitoring view over SAP applications and SAP HANA without buying a sophisticated third-party observability suite. What native AWS option keeps cost down?
Teams often lift-and-shift SAP to AWS and "right-size later." What exactly is right-sizing, and why does deferring it quietly bleed money?
On-premise SAP boxes are usually oversized for future growth. So what utilization number should you size the AWS instance to, and what's the model called?
An SAP S/4HANA app server runs on 8 vCPU / 64 GB RAM but discovery shows it peaks at 25% vCPU and 40% RAM. What does right-sizing say to do, and what does it save?
Right-sizing usually gets framed around EC2. How do you apply the same discipline to SAP storage, and what data drives it?
Right-sizing isn't a one-time migration task. What ongoing review keeps an SAP landscape from drifting back into overspend?
You shut down a standby SAProuter EC2 instance for DR but keep its registered Elastic IP allocated. Does AWS still bill you, and does that undermine the saving?
You want the cost of one SAP application's resources in one view, already scoped to just that app. Which console surface gives it to you, and what does it stitch together?
Beyond charting spend, what cost-saving intelligence does AWS Cost Explorer surface about your commitments and your instance sizing?
AWS Compute Optimizer makes sizing recommendations — how far back does it look, and how do you make its output SAP-specific?
You need one consolidated view of cost across AWS and other clouds for SAP. Does AWS ship an official multicloud cost tool, and what's the workaround?

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