Brief description of tenant and multi tenant concepts in cloud management platform

With

Cloud computing

rise , Increase of cloud Enterprises , The role of cloud management platform is becoming more and more obvious . But we are not very clear about some terms in the cloud management platform , Now let's briefly talk about the concept of tenant and multi tenant in the cloud management platform .

The concept of tenant in cloud management platform

Cloud management platform

Tenant in is a logical concept , After each of us or an enterprise registers an account on the public cloud platform , The platform thinks we are a tenant , We will allocate resources based on tenants . Tenant （Tenant） Refers to users who use systems or computing resources , It contains all data that can be identified as designated users in the system , For example, accounts and statistics created in the system （Accounting Data）, And all kinds of data set in the system and customized application environment set by users , All belong to the scope of tenants .

give an example ： For example, my Huawei cloud account ABC, Huawei cloud is for me ABC This account allocates resources , identity ID、 Independent VPC. If I register a new account , Then Huawei cloud will allocate new tenant resources for me . It's like building an independent data center for me , I'm the only one using it .

The concept of multi tenancy in cloud management platform

Multi tenancy is a software architecture in which a single software instance can provide services for multiple different user groups . In Cloud Computing , Multi tenancy can also refer to shared hosts , Its server resources will be allocated among different customers . The more resources are shared among tenants , The higher the utilization rate of basic resources , The lower the unit resource cost , The worse the isolation between tenants .

The difference between multi tenant and multi tenant

1、 Different levels of safety control . A multi tenant database stores data from multiple independent tenants , Although safety isolation is set , But the level of security control is still higher than that of single tenant . Because a single tenant has an independent software and hardware environment , The database only stores the data of one tenant , Technically, the possibility of data leakage is eliminated , Single tenant architecture is sometimes more suitable for some industries that need security control and even legal compliance requirements .

2、 The complexity of data backup varies . A single tenant has an independent database , The backup and recovery of customer database is very easy . Multi tenancy is sharing a database , The tenant's data is both isolated and shared , The system cannot automatically perform independent backup of the enterprise every day .

3、 Control different upgrade times . The system maintenance cost of multi tenancy is low , When upgrading a multi tenant system , Just update once . Maintenance personnel do not need to update every user , It saves a lot of operation and maintenance costs . This is very useful for systems where all customers are doing the same thing . But if the system upgrade time occurs when the enterprise is particularly busy , It is bound to have an impact on enterprise users .

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What does multi tenancy mean ？ How to understand ？