Term
| Undifferentiated lifting of IT |
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Definition
| The "engines" behind the IT don't add value. The processes and data does. So outsource the engines. |
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Term
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Definition
- on-premises deployment
- uses virtualization and resource mngmt tools |
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Term
| Benefits of Cloud Computing |
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Definition
- Trade upfront expense for variable expense
- Stop spending money to run and maintain data centers
- Stop guessing capacity
- Benefit from massive economies of scale
- Increase speed and agility
- Go global in minutes |
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Term
| Trade upfront expense for variable expense |
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Definition
- upfront expenses refers to data centers and physical resources
- pay only for what you use |
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Term
| Increase speed and agility |
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Definition
- easier for you to develop and deploy applications
- access new resources within minutes |
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Term
| Benefit from massive economies of scale |
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Definition
| The aggregated cloud usage from a large number of customers results in lower pay-as-you-go prices. |
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Term
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Definition
| Making EC2 instances larger or smaller when needed |
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Term
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Definition
- Compute as a service
- e.g. EC2 instances
- supplied on-demand |
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Term
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Definition
- General purpose
- Compute optimized
- Memory optimized
- Storage optimized
- Accelerated computing |
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Term
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Definition
- app servers
- gaming servers
- backend servers
- small-med DB servers |
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Term
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Definition
- compute intensive tasks
- Gaming servers
- HPC
- Scientific modeling |
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Term
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Definition
- memory intensive tasks
- high-performance DB |
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Term
| Accelerated Computing EC2 |
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Definition
- Floating point calculations
- Graphics processing
- Data pattern matching
- Utilize HW accelerators |
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Term
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Definition
- High performance for locally stored data
- data warehousing apps |
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Term
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Definition
- On-demand
- Savings plan
- Reserved Instances
- Spot Instances
- Dedicated Hosts |
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Term
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Definition
- short-term, irregular workloads that cannot be interrupted
- developing and testing applications
- running applications that have unpredictable usage patterns |
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Term
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Definition
- Enable you to reduce your compute costs by committing to a consistent amount of compute usage for a 1-year or 3-year term
- 66% savings over On-Demand pricing
- Any usage up to the commitment is charged at the discounted plan
- Any usage beyond the commitment is charged at regular On-Demand rates. |
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Term
| Reserved Instances EC2 pricing |
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Definition
- Billing discount applied to the use of On-Demand Instances in your account.
- Can purchase Standard Reserved and Convertible Reserved Instances for a 1-year or 3-year term,
- Can purchase Scheduled Reserved Instances for a 1-year term
- At end of term you are charged On-Demand rates unless
- Terminate instance
- Purchase a new Reserved instance that matches current |
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Term
| Spot Instances EC2 pricing |
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Definition
- ideal for workloads with flexible start and end times or can be interrupted
- if capacity is no longer available or demand for Spot Instances increases, your instance may be interrupted |
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Term
| Spot Instances EC2 pricing |
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Definition
- ideal for workloads with flexible start and end times or can be interrupted
- if capacity is no longer available or demand for Spot Instances increases, your instance may be interrupted |
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Term
| Dedicated Hosts EC2 Instances |
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Definition
- most expensive
- physical servers with EC2 instance capacity that is fully dedicated to your use
- per-socket, per-core, or per-VM software licenses
- can purchase On-Demand Dedicated Hosts and Dedicated Hosts Reservations |
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Term
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Definition
- involves beginning with only the resources you need and designing your architecture to automatically respond to changing demand by scaling out or in
- EC2 Auto Scaling service |
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Term
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Definition
- two types
- Dynamic scaling based on changing demand
- Predictive scaling based on predicted demand
- use both to scale faster |
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Term
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Definition
- up means more compute power to an instance to process faster
- out means more instances to handle demand
- done via Auto Scaling groups |
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Term
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Definition
- 3 parameters
- minimum capacity (always running)
- desired capacity (based on health)
- maximum capacity (increase to max on-demand) |
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Term
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Definition
- Elastic Load Balancing
- Service that auto distributes incoming app traffic across multiple resources
- Works with auto scaling service |
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Term
| Tightly coupled architecture |
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Definition
| - if a single component fails, it causes issues for other components |
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Term
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Definition
- Simple Queue Service
- De-couple components
- send, store and receive messages btw components
- Any volume |
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Term
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Definition
- Simple Notification Service
- uses pub/sub model using "topics" and "notifications"
- can be used by SQS |
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Term
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Definition
- In addition to EC2 instances
- provisioning, scaling, maintenance, and HA done for you
- Services
- Lambda
- ECS
- EKS
- Fargate |
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Term
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Definition
- you pay only for the compute time that you consume and apply only when your code is running.
- usually runs less than 15 minutes
- reasons
- short running funcs
- service-oriented apps
- event driven apps
- no provisioning or mngmt of servers needed |
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Term
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Definition
- Elastic Container Service
- Elastic Kubernetes Service
- service orchestrates and manages docker containers that contain EC2 instances
- you have option to configure EC2 instances |
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Term
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Definition
- works with ECS & EKS
- the service orchestrates and manages docker containers without EC2 instances
- you do NOT configure the instances |
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Term
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Definition
- In addition to EC2 instances
- provisioning, scaling, maintenance, and HA done for you
- Services
- Lambda
- ECS
- EKS
- Fargate |
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Term
|
Definition
- you pay only for the compute time that you consume and apply only when your code is running.
- usually runs less than 15 minutes
- reasons
- short running funcs
- service-oriented apps
- event driven apps
- no provisioning or mngmt of servers needed |
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Term
|
Definition
- Elastic Container Service
- Elastic Kubernetes Service
- service orchestrates and manages docker containers that contain EC2 instances
- you have option to configure EC2 instances |
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Term
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Definition
- works with ECS & EKS
- the service orchestrates and manages docker containers without EC2 instances
- you do NOT configure the instances |
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