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Curso Pr谩ctico de Storage en AWS

Curso Pr谩ctico de Storage en AWS

Carlos Andr茅s Zambrano Barrera

Carlos Andr茅s Zambrano Barrera

Tipos de EBS - ST1 - SC1

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What are ST1 and SC1 and what are they used for?

In the vast world of Amazon EBS, two types of volumes often stand out for their specific use cases: ST1 and SC1. Both are designed to address particular cloud storage needs, promoting flexibility and cost and performance efficiencies in a variety of applications.

What is ST1?

ST1 is known for its application in specific fields such as Big Data, Data Warehouse, Log Process or Streaming. This type of volume is characterized by its large capacities, ranging from 500 GB to 16 TB. However, it is crucial to understand that it cannot be used as a BUD or ROOT of an EC2 instance, i.e. it is not possible to install an operating system on an ST1 volume.

What is SC1 for?

Unlike ST1, SC1 focuses on infrequently accessed loads. It is presented as a more economical volume option, ideal for scenarios where cost is a determining factor. With capacities ranging from 500 GB to 1 TB, SC1 is also incapable of acting as a BUD for an EC2 instance and its payment is based on provisioned capacity, promoting significant savings in situations where access is sporadic.

How to select and configure EBS volumes?

When starting an EC2 instance, a variety of storage options are presented that must be strategically matched to the user's needs. Properly analyzing the available options is essential to optimize both performance and costs.

Differences between General Purpose and Provisioned volumes?

  • General Purpose (GP2): Offers a ratio of three IOPS per GB, designed to meet general storage needs with balanced performance up to 3,000 IOPS. It is a common choice for a wide range of applications.

  • Provisioned IOPS (IO1): This setting allows specifying the amount of IOPS, which can reach up to 10,000 with 100 gigabytes, showing much more significant performance for applications requiring high intensity of input/output operations.

Both options, GP2 and IO1, allow the volume to be persisted independently of actions such as deleting the server, and can be encrypted using the KMS service.

How to manage additional storage?

The process of attaching new volumes is simple from the AWS console. When creating a volume, we have the possibility to select between different EBS types such as General Purpose, ST1 or SC1, adjusting parameters such as size, IOPS and availability zone.

To attach it to an instance, the "attach volume" function is used, allowing a volume to serve only one instance at a time, ensuring data stability and integrity.

Key factors in EBS volume selection

Choosing the right EBS type requires a thorough understanding of the specific needs of the application. Consider the following factors:

  1. Use case: Determines which type of EBS is best suited for the intended purpose.
  2. Performance: Evaluates both in terms of IOPS and throughput to meet operational demands.
  3. Cost: Considers the cost associated with different levels of performance and size, aligning the chosen option with the available budget.

These elements are critical to efficiently selecting an EBS volume, optimizing not only costs, but also facilitating effective and reliable performance on Amazon Cloud.

Exploring each of these features in detail will allow you to optimally manage your cloud resources, ensuring a balance between price, performance and capacity.

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Tipos de EBS: ST1 & SC1

HDD ST1

  • BigData, Data Warehouse, Log Process o Streaming. No pueden ser Boot de una EC2.
  • Entre 500GB y 16TB.

HDD SC1

  • Volumen de menor costo para cargas de acceso con poca frecuencia. No pueden ser Boot de una EC2.
  • Escenarios donde el costo es importante. Entre 500GB y 16TB.

Magnetic (standard)

  • Es el que tiene la instancia por defecto al ser encendida. No es recomendable porque no garantiza el almacenamiento de la informaci贸n luego de que se reinicie o se apague.

Nota: el tipo de disco magn茅tico no corresponde a la descripci贸n del profesor, este refiere a que no es de estado solido y es magn茅tico como cualquier pc com煤n y es de velocidades de 5400 rpm no se si lleguen a las 7200 rpm, enserio que es lento y por lo mismo es mas econ贸mico, ahora cuando dice que no se garantiza la informaci贸n despu茅s de un apagado quiero pensar que lo dijo por que no es tolerante a fallos, ya que hay otro tipo de discos para ec2 mas antiguas que tienen discos ephemeral que son de memoria vol谩til y estos si que una vez que se apagan y se enciende se borra la informaci贸n y ya no se puede recupera, tampoco pueden ser root.

super gracias ! 馃槂 depende del caso de uso su uso y ver el rendimiento

Que clase tan genial, este conocimiento si que es, muy importante a la hora de crear arquitecturas dependiendo de las necesidades del negocio

驴Dice boot o root, o ambos?

Temas a tener en cuenta en EBS.

Estos son usados para cargas de info con baja frecuencia.
de los 4 tipos de EBS:
es importante escogerlo dependiendo de la necesidad del negocio o proyecto. mayor iops o menor iops . alta frecuencia de read/write baja frecuencia de r/w