what is the necessity to provide different storage types in AWS?
in which scenarios will use S3/EBS/RDS in AWS??
Amazon S3 is an object store. It can store any number of objects (files), each up to 5TB. Objects are replicated between Availability Zones (Data Centers) within a region. Highly reliable, high bandwidth, fully managed. Can also serve static websites without a server. A great places for storing backups or files that you want to share.
Amazon Elastic Block Store (EBS) is a virtual disk for Amazon EC2 instances, when a local file system is required.
Amazon RDS is a managed database. It installs and maintains a MySQL, PostgreSQL, Oracle or Microsoft SQL Server database as a managed service.
There are more storage services such as DynamoDB, which is a fully-managed NoSQL database service that provides fast and predictable performance with seamless scalability; DocumentDB that provides MongoDB-compatible storage; Amazon Neptune, which is a graph database; Amazon Redshift, which is a petabyte-scale data warehouse; ElastiCache, which is a fully-managed Redis or Memcached caching service; etc.
The world of IT has created many different storage options, each of which serves a different purpose or sweet-spot.
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I am responsible for some RDS instances (MariaDB), all running in the same region (with no multi-az setup) and configured to use the automated backup provided by AWS. According to AWS documentation, the automated backups are stored in S3 but there is no detail on the storage class in the documentation.
Business wants assurances that the backups are stored in multiple AZs (not all storage classes offer this!). I've tried to find out more about RDS backup storage through AWS support, but they've been rather unhelpful, claiming these are "internal details" and they can't tell me anything more than I read in the documentation.
So: is it known whether RDS automated backups are stored in multiple AZs, or should I just use AWS Backup with Cross-Region Backups?
I am little confused for a web server or s3 static web content, what should be good, Please explain what is advantages of the web server and what is disadvantages of the web server as well as s3.
Amazon S3 is highly scaled. It supports some of the world's largest websites.
Data stored on Amazon S3 is replicated to multiple data centres, making the data highly resilient.
It is commonly used to store and serve static web content (eg style sheets, images, scripts) and is also used by companies around the world to store data for internal consumption (known as data lakes).
Compared to a web server, it is much simpler to use, more reliable, does not require engineering support (it's a managed service) and is likely to be cheaper, too.
However, please note that it only stores and serves static content. It cannot provide any back-end logic for applications. You would use a server or AWS Lambda functions to provide that functionality.
To resolve a few issues we are running into with docker and running multiple instances of some services, we need to be able to share values between running instances of the same docker image. The original solution I found was to create a storage account in Azure (where we are running our kubernetes instance that houses the containers) and a Key Vault in Azure, accessing both via the well defined APIs that microsoft has provided for Data Protection (detailed here).
Our architect instead wants to use Kubernetes Persitsent Volumes, but he has not provided information on how to accomplish this (he just wants to save money on the azure subscription by not having an additional storage account or key storage). I'm very new to kubernetes and have no real idea how to accomplish this, and my searches so far have not come up with much usefulness.
Is there an extension method that should be used for Persistent Volumes? Would this just act like a shared file location and be accessible with the PersistKeysToFileSystem API for Data Protection? Any resources that you could point me to would be greatly appreciated.
A PersistentVolume with Kubernetes in Azure will not give you the same exact functionality as Key Vault in Azure.
PesistentVolume:
Store locally on a mounted volume on a server
Volume can be encrypted
Volume moves with the pod.
If the pod starts on a different server, the volume moves.
Accessing volume from other pods is not that easy.
You can control performance by assigning guaranteed IOPs to the volume (from the cloud provider)
Key Vault:
Store keys in a centralized location managed by Azure
Data is encrypted at rest and in transit.
You rely on a remote API rather than a local file system.
There might be a performance hit by going to an external service
I assume this not to be a major problem in Azure.
Kubernetes pods can access the service from anywhere as long as they have network connectivity to the service.
Less maintenance time, since it's already maintained by Azure.
I have searched minio.io for hours but id dosn't provide any good information about clustering, dose it has rings and instance are connected? or mini is just for single isolated machine. And for running a cluster we have to run many isolated instance of it and the our app choose to which instance we write?
if yes:
When I write a file to a bucket does minio replicate it between multi server?
I is it like amazon s3, or openstack swift that support of storing multi copy of object in different servers (and not multi disk on the same machine).
Here is the document for distributed minio: https://docs.minio.io/docs/distributed-minio-quickstart-guide
From what I can tell, minio does not support clustering with automatic replication across multiple servers, balancing, etcetera.
However, the minio documentation does say how you can set up one minio server to mirror another one:
https://gitlab.gioxa.com/opensource/minio/blob/1983925dcfc88d4140b40fc807414fe14d5391bd/docs/setup-replication-between-two-sites-running-minio.md
Minio also Introduced Continuous Availability and Active-Active Bucket Replication. CheckoutTheir active-active Replication Guide
I am a recent grad and wanted to learn about doing web application using AWS. I have gone through the documentation and ran their sample Travel Log application Successfully.
But still I am not clear about the terminologies used. can anyone explain me the difference between Amazon Simple Storage Service (Amazon S3), Amazon Elastic Compute Cloud (Amazon EC2), Amazon SimpleDB in simple words.
I am looking to come up with a web app that has a signin page and people posting some text there. may i know what services of amazon would be required for me to build this app.
Thanks
Amazon Simple Storage Service (S3) is for load static content , maybe images, videos, or something you want to save, You could think of it like a hard drive for storage.
Amazon Elastic Compute Cloud: ( EC2) basically is your Virtual Operative System, you can install whatever OS you want (Debian, Ubuntu, Fedora, Centos, Windows Server, Suse enterprise). ( if your application uses server side processing this will be its home)
Amazon Simple DB, is a no-sql database system, that you could use for your aplications, and Amazon gives you as a service, but if you want to use something more, you could install yours on EC2, or use RDS for Database server (MySql for example)
If you want to know more, there are some books, like: "programming Amazon EC2" or see Amazon screencast at http://www.youtube.com/user/AmazonWebServices or its presentation on http://www.slideshare.net/AmazonWebServices
Amazon Simple Storage Service (Amazon S3)
Amazon S3 (Simple Storage Service) is a scalable, high-speed, low-cost web-based service designed for online backup and archiving of data and application programs. It allows to upload, store, and download any type of files up to 5 TB in size. This service allows the subscribers to access the same systems that Amazon uses to run its own web sites. The subscriber has control over the accessibility of data, i.e. privately/publicly accessible.
Amazon Elastic Compute Cloud (Amazon EC2)
Amazon Elastic Compute Cloud (Amazon EC2) provides scalable computing capacity in the Amazon Web Services (AWS) cloud. Using Amazon EC2 eliminates your need to invest in hardware up front, so you can develop and deploy applications faster. You can use Amazon EC2 to launch as many or as few virtual servers as you need, configure security and networking, and manage storage. Amazon EC2 enables you to scale up or down to handle changes in requirements or spikes in popularity, reducing your need to forecast traffic.
Amazon SimpleDB
Amazon SimpleDB is a highly available NoSQL data store that offloads the work of database administration. Developers simply store and query data items via web services requests and Amazon SimpleDB does the rest.
Unbound by the strict requirements of a relational database, Amazon SimpleDB is optimized to provide high availability and flexibility, with little or no administrative burden. Behind the scenes, Amazon SimpleDB creates and manages multiple geographically distributed replicas of your data automatically to enable high availability and data durability. The service charges you only for the resources actually consumed in storing your data and serving your requests. You can change your data model on the fly, and data is automatically indexed for you. With Amazon SimpleDB, you can focus on application development without worrying about infrastructure provisioning, high availability, software maintenance, schema and index management, or performance tuning.
For more information, go through these:
https://aws.amazon.com/simpledb/
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/concepts.html
https://www.tutorialspoint.com/amazon_web_services/amazon_web_services_s3.htm
Amazon S3 is used for storage of files. It is basically like the hard drives like on your system you use C or D your files. If you are developing any application you can use S3 for storing the static files or any backup files.
Amazon EC2 is exactly like your physical machine. Only difference is EC2 is on cloud. You can install and run software, applications store files exactly you do on your physical machines.
Amazon Simple DB is a a database on cloud. you can integrate it with your application and make queries.