Google Cloud Platform
Cloud Storage
It is Storage as a Service. Cloud Storage is web service that is provided by Google which allows user to store data. The user can store any size of data. There are the numerous use cases like storing data, serving website contents etc.which can be considerd while using Cloud Storage.
Key Terms
Projects
When you start with Google Cloud Platform, you must create a project in your account before launching a resouce. All the resources belong to a specific project.
Buckets
User store their data in Google Cloud Storage by creating Buckets. You can assume Buckets like a folder, but you cannot have nested Buckets. Buckets allow you to organize your data and access controls.
When creating buckets you have to specify a bucket name, storage class and geographic locations.
Buckets Names
Bucket names must follow the DNS naming conventions. Bucket name must be unique within Google Cloud Storage namespace.
Buckets Labels
Using Bucket Labels you can group your buckets with other Google Cloud Services.
Objects
When you upload a file in the bucket, that file is called Objects. Cloud Storage treats all types of file like Objects. Objects metadata and object data are the two components of Object. That file you have uploaded is called object data. Name-value pairs are used to get information about the object. Collection name-value pair is called object metadata.
Objects Names
Each object has a name and it is stored as metadata information. Unicode character is used to name an object and it can be up to 1024 bytes.
Generation’s number
When you upload an object to the bucket then Google assign a generation’s number to that object. When you rewrite the object, new generation number is assigned to the objects.
Storage Class
When we create a bucket in Cloud Storage, you must specify the default storage class for that bucket. Cloud storage provides you the different storage class. Storage Class are :
- Multi-Regional Storage
- Regional Storage
- Nearline Storage
- Goldline Storage
Multi-Regional Storage
When you choose Multi-Regional storage, Cloud storage replicates your data into different regions. It is mostly costs more than other storage class. It provides 99.95% availability SLA.
Regional Storage
Regional storage Cloud storage replicates your data into different availability zones. It is cheaper than other storage class. It provides 99.9% availability SLA.
Nearline Storage
This storage class should be used when you do not need to access your data frequently. This is much cheaper than regional storage. It provides 99.0% availability SLA. There is 30-day minimum storage duration.
Goldline Storage
This storage class should be used when you access your data once a year. This has the lowest cost per GB. It provides 99.0% availability SLA. There is 90-day minimum storage duration.
Must Read Artcile
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